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17 Best Rated Air Purifiers For Allergies and Asthma – In-Depth Reviews


Models Considered


Hours of Research


Experts Interviewed


Consumer Reviews Analyzed

A llergies and asthma are two conditions a lot of people deal with and that pose quite an issue seeing how their evolution greatly depends on air quality. As you spend most of your time indoors, whether it’s your home or the office, if you suffer from the aforementioned afflictions, you must use a specialized air purifier for allergies and asthma.

The reason for this is that it targets and destroys bacteria, viruses, and particles known to cause reactions in sensitive individuals, improving life quality by protecting your health. According to the American College of Allergies Asthma and Immunology, allergies are the 6th leading cause of chronic illness in the United States, and more than 24 million people suffer from asthma. Asthma and allergic diseases are more common than most think, and creating special conditions for people who suffer from these afflictions is mandatory for their wellbeing.

Allergies and asthma often occur together, and their symptoms are very similar even in individuals who don’t suffer from both conditions simultaneously. These unpleasant reactions include wheezing, dizziness, breathlessness, hives, chest tightness, and more. Fatigue is a common factor with both conditions, people who are asthmatic or suffer from allergies having a difficult time carrying out their daily tasks during the days when their symptoms act up.

In the following, we will present you with the best air cleaning systems that tackle pollutants which are known to trigger symptoms in individuals who suffer from asthma and allergies, so if you care for your health you ought to try one of these selections out. What’s guaranteed is that your symptoms won’t act up anymore.

If you want to create safer conditions so that your respiratory health issue won’t act up, yet you don’t want to be bothered with costly and time-consuming maintenance work that much, a filterless air purifier might be better suited for you.

Top 17 Air Purifiers for Asthma and Allergies Compared

Area Coverage
Filter Media and Technologies
Filtration Rate
CADR Rating

Best Overall
1,125 sq. ft.
PreMax filter, activated carbon filter, pelletized chemisorption filter, HyperHEPA filter
10 years
1,560 sq. ft.
Pre-filter, Max2 filter
1 year
600 sq. ft.
Merv-12 pre-filter, PECO filter
2 years

Editor’s Choice
800 sq. ft.
Activated carbon filter, glass HEPA filter
2 years
775 sq. ft.
HEPA filter
640 – pollen, 500 – smoke, 500 – dust
5 years

Best for Bedroom
700 sq. ft.
Pre-filter, medium filter, BioGS HEPA filter, activated carbon filter, negative ion generator, customizable filter
5 years

Best for the Money
700 sq. ft.
Foam pre-filter, H13 True HEPA filter
800 sq. ft.
Activated carbon filter, True HEPA filter
2 years
600 sq. ft.
True HEPA, activated carbon filter, AreaSafe, PlasmaTRUE
188 – pollen, 196 – dust, 191 – smoke
3 years
465 sq. ft.
Activated carbon pre-filter, HEPA filter
300 – smoke, 300 – pollen, 320 – dust
5 years
361 sq. ft.
True HEPA, pre-carbon filter, Vital Ion technology
240 – pollen, 233 – smoke, 246 – dust
3 years
400 sq. ft.
Pre-filter, HEPA filter, UV light
10 years
355 sq. ft.
Pre-filter, True HEPA filter, activated carbon filter, UV-C light, anion technology
2 years
325 sq. ft.
True HEPA filter, 4 x precut activated carbon pre-filters
2 years

Best with UV Light
153 sq. ft.
True HEPA, charcoal filter, UV-C light, TIO2 treatment
118 – dust, 125 – pollen, 99 – smoke
3 years
200 sq. ft.
Pre-filter, True HEPA, activated carbon filter, UV-C light
5 years
129 sq. ft.
Pre-filter, H13 True HEPA, activated carbon filter
2 years

Asthma and allergy symptoms worsen during winter because of the dry air. If you want to be smart with your money, your best choice would be an air purifier and humidifier combo system that integrates air filtration capabilities with moisture level increase to create the perfect living space indoors year-round.

1. IQAir HealthPro Plus

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  • Room coverage: 1,125 square feet
  • Filtration stages: 3
  • Filter media and technologies: PreMax filter, granulated activated carbon filter, pelletized chemisorption filter, HyperHEPA filter
  • Air filtration efficiency: 99.5%
  • Air changes per hour: 5
  • CADR rating: 300
  • Speed settings: 6
  • Noise level: 40 to 70 dB
  • Dimensions: 28” x 15” x 16”
  • Warranty: 10 years

The medical-grade performance makes it up to 100x more efficient in comparison to classic systems that rely on the performance of HEPA media in their operation, which is a feat unsurpassed by other entries on the market. Another highlight is the 1,125 sq. ft. area coverage that makes it ideal not only for residential use but for commercial use as well.

Want to see for yourself just how big of a difference running the IQAir makes for pollution reduction? Then get an air quality monitor and compare stats before and after you run this air purifier!

HyperHEPA Filtration Technology

No other purifier in its price range has the ability to clean the air so effectively. Moreover, its utilization of the 3D filter seal technology ensures that not even the smallest virus passes through to grant air purity. Among its features are included:

  • HyperHEPA – Removes particles that measure from 0.003 to 1 micron, which means that it is able to clear up the air of impurities that are 10x smaller in size than a virus.
  • Filtration – Reduction rate of 99.5% of all contaminants less than or equal to 0.003 micrometers.

It’s important to mention that the filters have a generous life expectancy even if you use the system extensively, every day. For example, the PreMax filter has to be changed every 18-months and the V5-cell every 2 years, while the HyperHEPA requires to be changed every 4 years.

Even Flow Diffuser

It provides 320-degree air delivery for even distribution of clean air. Some of its convenience features are:

  • Timer – Set it to work only for the amount of time you need it to instead of letting it run continuously if it’s not necessary.
  • Auto Shut-off – Once the timer runs out, it will automatically shut off.
  • Indicator Lights – The color-coded lights let you know when filter replacement is due.

It is covered with a 10-year protection plan, during this time being repaired free of charge in case defects arise, as long as the issues are not a result of misuse.

IQAir HealthPro Plus Performance Ratings – Expert Tester’s Opinion
To carry out the test, we used a room filled with dust, pollen, and where a dog sat for multiple hours so that the animal’s fur and dander would linger in the air. These are some of the most common allergy triggering pollutants. We started the IQAir and let it on the highest fan speed for 6 hours. Then, we returned into the room, turned the air purifier off, and tested air purity with a monitor to see if there are allergens still lingering in the air. The device showed that air purity was within healthy parameters, which means that the air cleaning unit did its job to perfection. After the testing trial, we rated the IQAir with 5.0/5.0 for its high efficiency in allergen reduction.

Marcus Mackay

  • Handles removing particles down 0.003 microns – even microscopic impurities won’t escape
  • The pelletized chemisorption filtration specializes in formaldehyde elimination
  • High 300 CFM air delivery rate at the top fan speed level
  • Filter replacement is not required often, so upkeep is not costly



The state-of-the-art technology used by the IQAir system makes it able to capture particles smaller than any other unit can. Hence, it was a no-brainer for the top spot. With medical-grade results in terms of air purification, once you turn it on you can rest assured knowing that your allergies won’t act up ever again.

2. Coway Airmega 400

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  • Room coverage: 1,560 square feet
  • Filtration stages: 2
  • Filter media and technologies: Pre-filter, Max2 filter
  • Air filtration efficiency: 99.99%
  • Air changes per hour: 2
  • CADR rating: 350
  • Speed settings: 5
  • Noise level: 22 to 52 dB
  • Dimensions: 22.7” x 14.8” x 14.8”
  • Warranty: 1 year

It is suitable for rooms up to 1,560 sq. ft., which means that it quickly clears the air of impurities even when used in large homes, farms, or commercial spaces. Furthermore, per hour, it has the capability to change the air 2 times. If you seek an air purifier for a large space, this entry is better suited for the purpose than our top rated pick, the IQAir HealthPro Plus that only manages to cover spaces of up to 1,125 square feet. It uses a combination of activated carbon filters with True HEPA media to remove 99.99% of impurities down to 0.3 microns, easily eliminating the likes of VOCs and chemicals.

Air Pollution Sensor

The integrated pollution sensor informs you regarding the exact conditions of the air indoors so that you know how safe or unsafe living conditions are at that moment. Crafted to shine bright, the LED ring is the one that lets you know whether the air is clean or highly polluted, every minute of the day. Its design features are:

  • 5 Fan Modes – Pick between Smart, Sleep, Low, Medium, or High.
  • Automatic – The fan mode can be set to automatically change its speed according to the pollution levels indoors.
  • Timer – Can be set for up to 8 hours in advance, after which it terminates its functioning until you restart it to limit power draw.

An aspect that stands out is that the pre-filter is washable and reusable, which means that not much investment is needed to upkeep the system functioning on par.

See here other air purifiers with washable filters and compare options if you are tempted to buy a product on which you won’t spend much money on upkeep in the long run.

Dual Suction

This design element implies that it draws air from two sides, after which it pushes clean air back into the room from the top side, cutting down the time it takes to ensure you’ll breathe fresh air. Some of its particularities are:

  • Energy Efficient – It only draws 66 watts when it runs.
  • Filter Indicator – Cleaning and replacement are indicated by the system.

If you believe that the operating lights are too bright, you can dim them or turn them off. Another feature that makes it superior to the rest, is its ability to provide an ozone-free operation. So, it’s not harmful to use long term.

  • Real-time air quality monitoring granted by the pollution sensor it is fitted with
  • The indicator lets you know when to clean the pre-filter or replace the Max2 filters
  • Efficient at removing particles down to 0.01 microns from the air
  • Schedule the unit’s operation as you like – features an 8-hour timer

  • It’s bulky, so you need to make room for it
  • The main filter is expensive to replace


With real-time air quality monitoring to keep you aware of your surroundings and automatically adjust fan speeds to rapidly solve air purity issues when they appear, the Coway is among the fan-favorite options. Evidently, the high area coverage – use it for spaces up to 1,560 sq. ft. – doesn’t hurt either since it makes the unit perfect for clearing the air in the basement of allergens and other pollutants.

3. Molekule Air

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  • Room coverage: 600 square feet
  • Filtration stages: 2
  • Filter media and technologies: MERV-12 pre-filter, PECO filter
  • Air filtration efficiency: 99.99%
  • Air changes per hour: 1
  • CADR rating: 88
  • Speed settings: 3
  • Noise level: 41 dB
  • Dimensions: 23” x 8.25” x 8.25”
  • Warranty: 2 years

Design-wise, the Molekule Air is one of the most easily recognizable systems out there, the tubular shape and anodized aluminum body making it quite easy to stand out. It is even fitted with a leather handle that adds a touch of style to the whole ensemble and makes it much easier for you to move the air purifier from room to room.

Since it does not make much noise when it runs, around 41 decibels to be specific, it’s one of the options that goes great even in the bedroom or nursery. What makes it even better for use during sleep time is that it emits no ozone or other harmful byproducts in its operation, so there are no potentially health-threatening particles released into the air.

Highly Performant
  • Vast coverage: Works for spaces up to 600 square feet, where it provides a single air change per hour. When you use it in a room that measures 150 square feet, it will produce 4 air changes per hour, keeping the air clean and safe to inhale for your whole stay as long as it’s turned on.
  • Easy to use: It looks quite futuristic, but don’t let the design scare you if you aren’t the most tech-savvy person out there. It features touchscreen operation so there’s not much you need to do when you want to change the fan speed, check on the filter life, and switch between operating modes.
  • Captures particles with ease: The air it pulls in is first passed through the outer layers of the filter, where the larger particles are trapped so that the efficiency of the following media is increased.
  • Unique PECO purification process: This filter is composed of nanocatalyst-coated filters that react to light and handle eradicating all the remaining pollutants in the air passing through the system. This specific filter has a 99.99% efficiency when it comes to destroying biological contaminants, so you can see why it’s one of the best options for allergy and asthma sufferers.
  • Takes in air from every angle: What makes it flaunt this specific capability is the 360-degree air intake. What you must be aware of, however, is that since it pulls in air from all corners, it’s ideal to position the air filtering system in an open area rather than back it against a wall. That would just decrease its efficiency.
Smart Filtration System

We are now reliant on smart technologies more than ever, and all of us are dependent on our phones. Seeing how the Molekule lets you check the lifespan of the filter and even change fan speeds from your smartphone, it’s a product that the modern person will surely have a great time using. The app is available for both Android and iOS smartphones, so it doesn’t matter the brand of phone you own, you can control the purifier remotely with it.

  • Smart filter system – use your phone to set the fan speed and check the filter status
  • The touchscreen makes operating the unit as easy as it comes
  • 360-degree air intake ensures it pulls in air from every angle
  • Does not produce ozone or other harmful byproducts

  • The blue glow light at the top can’t be turned off while the system is on
  • Placing it in a corner will lower its efficiency in air pollutant reduction since it won’t pull air inside at an optimal rate


Using the unique PECO technology to rid the air of dust, smoke, bacteria, and viruses, to name a few of the pollutants it tackles, the Molekule Air is a must-have for health concerned individuals. It is a hefty acquisition but one worth making since it provides a modern means to keep the air indoors clean and clear of impurities that might trigger your asthma or allergies.

4. Dyson Pure Cool TP04

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  • Room coverage: 800 square feet
  • Filtration stages: 2
  • Filter media and technologies: Activated carbon filter, glass HEPA media
  • Air filtration efficiency: 99.97%
  • Air changes per hour: 90
  • CADR rating: N/A
  • Speed settings: 10
  • Noise level: 32 dB
  • Dimensions: 41.5” x 4.6” x 8.1”
  • Warranty: 2 years

Dyson is well known for the unique modern design of the home use devices it releases, and the TP04 makes no exception. This tower-style unit is quite a standout wherever you place it specifically for the interesting design it flaunts. There are no exposed parts that could harm kids or pets, like blades, so safety is a given with this product. Speaking of safety and overall reliability, multiple certifications are granted for this unit, specifically:

  • AAFA certification: AAFA stands for Asthma and Allergy Foundation of America. Since the TP04 is awarded this certification, there’s no doubting its efficiency when it comes to creating a safer habitat for individuals who are struggling with asthma and allergies.
  • PTPA approved: Tested by parents and approved by parents, this product is perfect for families with small kids. It doesn’t emit ozone or harmful byproducts, boasts an extra-safe design granted by the lack of blades, and doesn’t tip over easily either. Evidently, its high efficiency in pollutant removal actively participated in awarding it this certification.
  • Energy Star certified: This prestigious seal is offered only to products that consume significantly less power than similarly performing units in their class. Since the TP04 is Energy Star approved, it means that running it even 24/7 won’t lead to a significant rise in your electric bills.
A 2-in-1 System that Makes Your Life Better

What differentiates this entry the most from the other products we reviewed is the 2-in-1 operation it boasts. Besides the fact that it purifies the air in the room, the Dyson can be used as a tower fan too. When you don’t want it to produce the cooling breeze and you simply want to benefit from air purification on its part, simply use the backward airflow mode and there won’t be a cool draft in the room anymore.

Features and Performance Aspects that Make It a Must-Have
  • Quality filters: To clear the air of impurities and make it 100% safe for you to inhale it, the TP04 relies on two filter media – an activated carbon filter that tackles smells and VOCs, and a glass HEPA filter that captures pollutants as small as 0.3 microns with an efficiency rate of 99.97%.
  • Great for large spaces: This is one of the few products that you can rely on for large spaces, even the basement if that’s where you’re interested in air purification. This is granted by the fact that it is rated to perform optimally in spaces of up to 800 square feet.
  • Air Multiplier technology: The powerful airflow of 77 gallons per second ensures that clean air is circulated throughout the room rapidly. Don’t worry about the noise it makes in the process since this unit manages to stay quiet even though it’s powerful.
  • Voice control: Most homes have an Alexa in them now, the modern gadget making people’s lives easier. Since this unit works with Alexa, you can control it and change settings as you like through simple voice commands.
  • Adjustable oscillation: Maybe you want for it to spread the clean air throughout the whole room or only in specific areas. The adjustable oscillation grants you the ability to decide at what exact angle it should oscillate, permitting you to regulate it from 45 to 350 degrees.
  • Air pollution monitoring: It features specialty sensors that track air quality and gives you reports on your smartphone app in real-time to keep you aware of your surroundings, a trait that it shares with another product we reviewed, the Coway Airmega 400. The pollutants it monitors include PM 2.5, PM 10, nitrogen dioxide, and volatile organic compounds.
  • Multiple speeds: Most of us are used to the classic 3-4 fan speeds granted by most machines. However, this Dyson entry sets itself apart once again since there are 10 different running speeds provided to pick from. Thus, you can tailor the breeze it produces and the pace at which it pulls the air inside exactly as you like.
  • Night-time mode: Why be bothered by changing the settings yourself before you go to bed when you can have the unit do the needed changes automatically. When you opt to turn on this operational mode, the display is automatically dimmed so that it won’t distract you, and the fan speed is shifted to a lower, quieter setting.
  • Upkeep notifications: There’s no guessing involved with this product. When the routine maintenance task of changing the filter is needed, you will be notified by the TP04.
Other Interesting Details

The footprint is an aspect of importance since you wouldn’t want to end up having a hard time finding a free spot for the device in your home. Luckily, this Dyson entry doesn’t take up much space since it measures only 41.5 inches in height by 4.6 inches in length by 8.1 inches in width. Seeing how it weighs a little less than 11 pounds, it’s more than clear that relocating it is a one-person job, which is good news since you will likely want to move it with you when you go to a different room too.

It doesn’t make much of a ruckus when it runs, only about 32 decibels. Therefore, you can put it in the room you sleep in without worrying that it might wake you up at any point. A remote control is included for convenient controlling of the settings from afar. There’s even a curved space on top of the unit where you can place the remote when the TP04 is turned off so that you won’t misplace it by accident. Lastly, we highlight that Dyson offers a 2-year warranty for it. During this period, you won’t have to worry your mind about costs related to repairs.

  • When you want to use it simply as an air filter, just use the backward airflow mode and it won’t produce the cooling breeze anymore
  • Adjustable oscillation from 45 to 350 degrees for customized air purification
  • When used in Night-time mode, it dims the display and switches to the quiet settings
  • Check reports regarding air quality remotely via the Dyson Link app

  • There are issues with the app-unit connection at times
  • It’s not as impressive as advertised when it comes to air circulation


When it comes to modern solutions for air purification and comfort increase at home, few companies come close to Dyson in terms of results. The TP04 tower-style is one of their best releases yet, comprising a fan and a filter system in a single unit to serve you in more ways than one. Best of all, it’s a smart unit, so you can control it remotely and keep an eye on conditions at home even when you’re at work.

5. Blueair Classic 605

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  • Room coverage: 775 square feet
  • Filtration stages: 2
  • Filter media and technologies: HEPA filter
  • Air filtration efficiency: 99.97%
  • Air changes per hour: 5
  • CADR rating: 640 for pollen, 500 for dust, 500 for smoke
  • Speed settings: 3
  • Noise level: 33 to 62 dB
  • Dimensions: 26” x 20” x 13”
  • Warranty: 5 years

With the help of the Blueair Classic 605, you can balance allergy symptoms, asthma conditions, and other lung diseases. Designed with HEPASilent technology, the filter is electrostatically charged, and it has a mechanical filtration to ensure the removal of up to 99.97% of contaminants. Due to its high quality, it can easily provide up to 5 air changes per hour, which means that every 12 minutes it retakes its operation in full to ensure no airborne particles escape.

A popular alternative from the same manufacturer is the Blueair Blue Pure 211+ that features 3 purification stages and has a similarly high efficiency in terms of air pollutant reduction. This is another best seller from the same brand, but we preferred the Classic 605 over it because of the wider area coverage this specific model provides.

Wi-Fi Enabled/ Voice Assistant

Using your phone, you can control the system remotely, setting the child lock function, scheduling the timer to help save on running costs, and dimming the lights from afar. You can use voice commands via Alexa as well as it is compatible with the convenient voice assistant. Its design features are:

  • Night Mode – When you set it on this operating mode, the lights will turn off and it will be whisper-quiet.
  • Speeds – Choose between 3 integrated speeds to make it work according to your preferences.
  • Dual Airflow – Pushes back the clean air through the top and sides to grant quick operating.

Depending on what operating mode you set it on or at what speed, it will consume as little as 15 watts. However, the highest speed can make it consume up to 100 watts. On average, the customer says that it consumes around 60 watts.

Blueair SurroundAir System

Even though it employs quite a powerful airflow, it produces minimum draft. It is AHAM tested and Energy Star rated, hyping the right credentials for a market-leading air purification system. The independent laboratories have concluded that this model is safe to allow to work even when you’re not at home.

  • Takes only 12 minutes for it to finish cleaning the air in a 775 sq. ft. space
  • Alexa compatibility allows you to use voice control to change settings conveniently
  • Energy Star certified – draws 100 watts on the top fan setting and 15 watts on the lowest
  • Child Lock feature guarantees the kids won’t be able to mess around with the purifier’s settings

  • The app is buggy and doesn’t always respond to commands regarding speed change immediately
  • The blue power light can’t be turned off, which might be problematic if you plan on sleeping in the same room with the unit


The exclusive combination of mechanical and electrostatic filtration the Classic 605 uses makes it one of the most effective air filters when it comes to allergen removal. Aside from its performance efficiency, this Blueair model flaunts a smart design granted by the Wi-Fi connectivity and Alexa compatibility, and it is built to last so that you enjoy clean air for years to come.

6. Rabbit Air MinusA2

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  • Room coverage: 700 square feet
  • Filtration stages: 6
  • Filter media and technologies: Pre-filter, medium filter, BioGS HEPA filter, activated carbon filter, negative ion generator, customizable filter
  • Air filtration efficiency: 99.97%
  • Air changes per hour: 2
  • CADR rating: 171
  • Speed settings: 4
  • Noise level:[/tooltip] 25.6 to 51.3 dB
  • Dimensions: 20” x 21.4” x 7”
  • Warranty: 5 years

It uses a 6-stage process to clean the air, making it impossible for contaminants to escape its operation. It even provides you the option to customize the filter according to your specific needs so that it emphasizes the elimination of the predominant air pollutants you are dealing with. When it comes to its direct capabilities, you can rely on it for a space of up to 700 sq. ft.

Customizable Panel

You don’t have to sacrifice décor to breathe clean air, this model providing the option to pick between design options inspired by the works of artists like Vincent Van Gogh, Claude Monet, and Katsushika Hokusai. There are two other more playful options as well when it comes to design, more precisely the Hello Kitty and Peanuts themes. Some of its features are:

  • Sleep Mode – Dims the lights so that they won’t bother you, all while lowering the speed and sound when it detects the light has been turned off in the room.
  • Filtration – Removes 99.97% of all particles that measure down to 0.3 micrometers.
  • Air Changes – Changes the air 2 times within the span of an hour.
  • Energy Efficient – Sleep Mode: 6 watts, Speed 1: 8 watts, Speed 2: 17 watts, Speed 3: 27 watts, Speed 4: 58 watts.
Customizable Filters

As aforementioned, one of the filters can actually be chosen to tailor to your specific needs, and the options that are put at your disposal when it comes to this aspect include:

  • Germ Defense – It will effectively remove bacteria, fungi, and viruses.
  • Pet Allergy – It removes pet dander, odor, and pet allergens.
  • Toxin Absorber – All chemical vapors, VOCs, and outdoor allergens will be removed.
  • Odor Remover – It traps all allergens such as cigarette smoke and cigars, common household smells, and wildfire smoke.

Seeing how the lifespan of the filters is quite extensive, not a lot of money goes toward maintenance, which adds to the product’s overall appeal. In fact, it has been noted that if you run it daily for 12 hours consistently, replacement of the media it uses is needed only once every couple of years, so if you view yourself as budget-conscious, give this option a second thought.

  • Produces 2 air changes per hour in a 700 sq. ft. room
  • The sensitive odor and particle sensors ensure immediate detection of air quality issues so that the fan speed is adjusted as needed to solve the problem
  • Makes only 25.6 decibels on the low fan speed – perfect for the bedroom
  • Customizable panel design lets you pick the image that best works with the room’s décor

  • The smoke inflow section is fairly small, so it takes a while for it to clear the unpleasant smell
  • The automatic sleep mode is quite annoying since you might not always want it to reduce the speed when the lights in the room are dimmed


A highly efficient unit that delivers on its promise to reduce air pollution by 99.97% since it uses the BioGS HEPA filter, the MinusA2 makes a difference for the better in terms of air quality almost instantly after you run it. Since it is one of the quietest units available too, you can even sleep by its side without it waking you up, so feel free to use it in the bedroom.

7. Alen BreatheSmart FLEX

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  • Room coverage: 700 square feet
  • Filtration stages: 2
  • Filter media and technologies: Foam pre-filter, H13 True HEPA filter
  • Air filtration efficiency: 99.99%
  • Air changes per hour: 2
  • CADR rating: 225
  • Speed settings: 4
  • Noise level: 39 to 55 dB
  • Dimensions: 25” x 15” x 8.5”
  • Warranty: Lifetime

The BreatheSmart series air purifiers from Alen are among the most sought-after for their high efficiency, cheap price considering the performance, and manufacturer’s reliability. The design of the panel is customizable, so you can pick the color and style that works best with the décor you’ll place the unit in. There are six finishes you can pick from, namely Oak, Graphite, Espresso, Brushed Stainless, White, and Weathered Gray.

High-Grade Pollutant Reduction

This is quite a flexible air purifier (as implied by the name as well) since you can pick the exact type of pollutant reduction performance you want the unit to focus on. The filter media it uses is an H13 Tue HEPA model, and you have 4 options to pick from when it comes to the exact type of purification process you want it to provide:

Filter Type
Air Quality Issues of Focus
Allergens, dust, germs, mold
Pet and diaper odors, all other household odors, dust, allergens
Heavy Smoke
Smoke and chemicals
Mold, dust, allergens, VOCs, smoke, cooking odor

This long-lasting filter has an unmatched efficiency of 99.99% in airborne contaminant reduction. What impresses most is that it tackles impurities down to 0.1 microns without an issue, so it’s easy to see why its filtering capabilities are classified as medical-grade. Needless to say, the fact that it is suited for spaces up to 700 square feet is just as impressive, showing just how qualitative the performance of this product is. In a room this size it produces 2 air changes within the hour. If you seek an alternative to this product, the Rabbit Air MinusA2 is the most similar option since it’s rated to cover spaces of up to 700 square feet too.

*The filter needs to be replaced once every 12 months. The replacement cost is approximately $69.

Noteworthy Details
  • Choose the pace at which it works: It is fitted with 4 fan speeds that you pick from, so you have full control over the pace at which it cleans the air.
  • High airflow: On the low speed it is rated 53 CFM, on medium at 135 CFM, on high at 147 CFM, while on turbo it is rated at 187 CFM.
  • Energy efficiency at its highest: Depending on the operating speed you select, the unit draws from 0.8 to 56 watts. Needless to say, this means that you can run it unremittingly without worrying about the costs of your bills at the end of the month. (It is Energy Star certified for how energy-efficient it is.)
  • Quiet enough to sleep next to: Since it only produces from 39 to 55 decibels when it runs, it’s a safe option for the bedroom or nursery when it comes to noise pollution since it doesn’t make much of it.
Unparalleled Quality Guarantee

To end on a high of a note as possible, we mention that lifetime backing from defects is provided for this product. This is the one aspect where Alen purifiers clearly dominate competitors since this is the longest warranty possible. As long as you make sure to use the product as instructed and not damage it by accident, whenever an issue appears the company will solve it without charging you a cent.

  • Rids the air of 99.99% of impurities as small as 0.1 microns
  • Cleans the air in the room twice per hour when you use it in a 700 sq. ft. space
  • Filter lifespan of 12 months when you run the unit 24/7
  • Lifetime warranty exceeds the industry standard

  • Does not feature air quality sensors
  • No connectivity options or app, so you can’t control it using your smartphone


Perfect for fairly large rooms since it produces 2 air changes within the hour if you place it in a space up to 700 sq. ft. in size, the Alen BreatheSmart is a sought-after model for all the right reasons. It’s easy to use, doesn’t make much noise when it runs, and best of all, its air purification efficiency rate sits at a whopping 99.99% thanks to the H13 HEPA filter it uses.

8. Inofia PM1320

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  • Room coverage: 800 square feet
  • Filtration stages: 4
  • Filter media and technologies: True HEPA filter, activated carbon filter
  • Air filtration efficiency: 99.97%
  • Air changes per hour: 2
  • CADR rating: 153
  • Speed settings: 3
  • Noise level: 27 to 45 dB
  • Dimensions: 17” x 9” x 23”
  • Warranty: 2 years

Destined for use in large spaces, more precisely up to 800 sq. ft., despite the large coverage and implicitly high purification capabilities, it doesn’t produce much noise in the process, only 34 to 67 decibels depending on the speed level you select, to be specific. Thus, it is viable for use in the bedroom, living room, or any other space you can think of where operational silence is important.

Smart Air Monitoring

It is popular among customers worldwide due to its multiple smart features that add comfort and convenience. Among its design highlights are included:

  • Indicator Light – Keeps you aware of air pollution levels.
  • Automatic – It adjusts the operating speed so that it runs at the needed level according to the severity of current pollution parameters.
  • Speeds – A total of 4 options are provided to select between.
  • Timer – Works in advance with 2, 4, or 8 hours.
Filtration Media

The activated carbon media has the ability to neutralize tobacco smoke, wildfire smoke, and other odors, including those produced by cooking. The other media it relies on, the HEPA-grade filter to be specific, tackles microscopic-size pollutants, so you are covered regardless of air pollution issues even when it comes to the small threats that are not visible to the naked eye.

  • Fairly quiet since it only produces 45 decibels on the highest fan speed setting
  • Low power draw – annual costs of running it 8 hours per day only amount to an estimated $25
  • High clean air delivery rate of 153 cubic feet per minute
  • Save money on running costs with the help of the 8-hour timer

  • Replacement filters can be hard to come by at times, so it’s best to stock up on them
  • Poorly written instructions – explanation of upkeep procedures is a tad confusing


Perfect for any space in your home, even the basement or attic since it flaunts a vast area coverage of 800 square feet, the PM1320 is an option many homeowners have decided on and didn’t regret their decision. Using an activated carbon filter and a True HEPA filter, this purifier makes sure that even particles down to 0.3 microns that could trigger your allergies or asthma are eliminated from the air.

9. Fellowes AeraMax 300

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  • Room coverage: 600 square feet
  • Filtration stages: 4
  • Filter media and technologies: True HEPA, activated carbon filter, AreaSafe, PlasmaTRUE
  • Air filtration efficiency: 99.97%
  • Air changes per hour: 5
  • CADR rating: 188 for pollen, 196 for dust, 191 for smoke
  • Speed settings: 4
  • Noise level: 25 to 50 dB
  • Dimensions: 16” x 25” x 8”
  • Warranty: 3 years

This auto-detecting model has been created with smart features so it provides superior efficiency. The carbon filter is able to remove odors in an area that ranges from 300 sq. ft. to 600 sq. ft. In case you’re not taking the cold season well, you can set it at the highest speed so it reduces your chances of catching the flu.


The HEPA filter ensures antimicrobial treatment as it delivers a 99.97% efficiency rate in the removal of particles down to 0.3 micrometers in size, including pollen, viruses, germs, dust mites, and mold spores. Additionally, even if someone in the house smokes, this won’t be an issue anymore as it removes the unwanted odor produced by burning cigarettes. Among its features are included:

  • Carbon Filter – Gets rid of odors and catches large airborne particles.
  • PlasmaTrue Technology – This ionizer feature is integrated to collect airborne contaminants more effectively.
  • AeraSmart Sensor – If it detects a high level of contaminants in the air, it will automatically change the fan speed to keep the air clean.
  • Low Power Draw – The speed can go from a low operation consuming 6 watts to turbo operation that consumes 86 watts, so it doesn’t draw much regardless of the functioning level you pick.


Likely its best feature is the integrated light that provides you with a specific notification in accordance with the color it displays, as follows:

  • BlueIt is safe for you to breathe.
  • YellowWeak air quality.
  • RedHigh pollution levels.

It uses a 4-step filtration system that is similar to that used in medical facilities. The system is quite practical as it includes a carbon filter that removes bad smells, regardless of their source, enabling use even where you cook so that the typical odors produced when you put together meals won’t be an issue anymore.

  • A high pollutant removal rate of 99.97% makes it perfect for individuals who suffer from respiratory health issues
  • Energy Star certified since it doesn’t consume much power when it runs
  • Depending on the size of the room you use it in, it can produce from 2.5 to 5 air changes per hour
  • AeraSafe impedes bacteria growth on the filtering media so that the air released back into the room won’t be contaminated

  • The light on the front panel cannot be dimmed
  • Costly upkeep because the filter media are expensive


This AeraMax product is one worth the money seeing how it passes the air through 4 filtration stages to clear impurities and leave behind air that is safe even for people who suffer from severe asthma. Filter replacement might be a bit costly as opposed to other models in its price range, but considering the high efficiency in air pollution reduction of 99.97%, you shouldn’t emphasize this flaw that much.

10. Honeywell HPA300

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  • Room coverage: 465 square feet
  • Filtration stages: 2
  • Filter media and technologies: Activated carbon pre-filter, HEPA filter
  • Air filtration efficiency: 99.97%
  • Air changes per hour: 4.8
  • CADR rating: 300 for smoke, 300 for pollen, 320 for dust
  • Speed settings: 3
  • Noise level: 20 to 50 dB
  • Dimensions: 22” x 23.5” x 13”
  • Warranty: 5 years

It can cover an area of 465 sq. ft., where it will handle the removal of an estimated 99.97% of airborne particles as small as 0.3 microns. This means that it can remove fine dust particles, pet hair, and pollen that are not visible to the human eye, but it also handles bacteria, germs, and odors that are lingering in the air.

Powerful and Efficient
  • One of its greatest feats is that it can change the air in the room 4.8 times within an hour, which means that once every 12 minutes it retakes the operating process to ensure that any new particles in the air are removed for your safety.
  • The HEPA media has the ability to remove viruses that measure 0.005-0.3, while the carbon filter handles common odors and tobacco smells.
Complete Removal of Allergens

This is without a doubt one of the most powerful models on the market. It has been designed with 3 speeds plus the Turbo Clean setting which means that it has the ability to clean a large room fast. Hence, if you’ve left the windows open, by allowing this purifier to operate for 10 minutes, you will not experience a stuffy nose, watery eyes, or an itchy throat due to pollen. In fact, numerous people all over the world have vouched for this purifier as it eased their allergy symptoms.

  • Perfect for allergen removal, as well as clearing unwanted odors regardless of their provenance
  • You can set it to turn off after 8 hours of operation to save on costs
  • The dimmer option for the lights of the control panel makes it suited for nighttime use
  • Energy Star label product that costs an insignificant sum of money per month if you run it 24/7

  • It’s quite bulky, so you need to free up considerable floor space for it
  • The replaceable filters air quite pricey


An Energy Star certified product that you can run unremittingly to uphold air purity indoors without the action costing you a fortune, the HPA300 is a standout and an option we are sure that you won’t regret considering. With high CADR ratings for all 3 major pollutants, and backed by a 5-year warranty against defects, it’s a budget-smart option for people who care about air quality.

11. Coway Mighty AP1512HH

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  • Room coverage: 361 square feet
  • Filtration stages: 4
  • Filter media and technologies: True HEPA, pre-carbon filter, Vital Ion technology
  • Air filtration efficiency: 99%
  • Air changes per hour: 5
  • CADR rating: 240 for pollen, 233 for smoke, 246 for dust
  • Speed settings: 3
  • Noise level: 24.4 to 53.8 dB
  • Dimensions: 18.3” x 16.8” x 9.6”
  • Warranty: 3 years

This is an ideal purifier that will allow you to take full control of your indoor pollutants whilst being energy-efficient. Even though it doesn’t have impressive certificates, it’s still very practical and efficient, especially seeing how it is easier to transport from one room to another due to its design, allowing relocation so that you can benefit from its performance in all spaces of your home. It can effectively deal with rooms up to 361 sq. ft.

Whilst it’s true that it produces small amounts of ozone, the company guarantees that your health will not be affected. Nonetheless, you will be pleased to know that it produces 4 air changes an hour, which means that all of the air in the room is pushed through the machine every 15 minutes so that at any point when it runs, you inhale air that is safe for your lungs.


It has an Energy Star certificate as it only uses 79 watts when used at its max performance capabilities, which means that no matter how often or long you run it, you won’t pay much in return. It uses 4-stage filtration in order to be fully effective, which is comprised of a pre-filter that obliterates large particles, a carbon media that tackles odors, a True HEPA filter that can capture the smallest-size particles it stumbles upon, and an ionizer that further sanitizes the air. Performance-wise, it is very similar to the Alen BreatheSmart FLEX with the single distinction that this Alen model can cover spaces twice as large as the Coway air cleaner can.


It boasts quite a compact design and weighs 12 pounds, making it easy to find a spot for it in any room, no matter how cluttered, as well as easing repositioning when needed. Additionally, the button controls are straightforward and easy to understand.


It features an air quality indicator that uses a sensor that counts and analyzes the particles in the air. The vivid colors show the air condition in its immediate environment so that you know when it’s imperious to run the system. Moreover, there are 3 functioning levels according to speed that you can select between, on the highest producing only 58 decibels to maintain a discrete operation. Some of its convenience-enhancing features include:

  • An 8-hour timer that you can use to enjoy a more efficient operation on its part consumption-wise.
  • An automatic mode that you can run when you want it to adjust its working speeds according to pollution levels so that you won’t have to tend to its operation to make sure it’s optimal.
  • The indicator that announces when the HEPA filter needs replacement.

It announces when maintenance related to the filter is due, which is helpful for those who have a busy schedule and cannot afford to routinely check the media just to see that they have wasted their time, eliminating guesswork as it provides this capability. If no airborne pollutants have been detected for 30 minutes, it will automatically shut off. This means that it’s also energy-efficient and practical. In case it loses its quality over the years, you can take full advantage of the 3-year warranty period.

  • Pollution sensor shows you how pure the air indoors is at all times
  • Filter lifetime indicator keeps you aware of when upkeep work is due
  • Cleans the air 5 times per hour in a space of 361 square feet
  • Perfect for households where smokers live since it reduces tobacco smoke contamination and freshens the air rapidly

  • It doesn’t have the most appealing design, which some customers were understandably bothered by
  • The ionizer function might not be tolerated by asthma sufferers (you can turn it off if it bothers you)


The Mighty from Coway is a powerful system that has gathered a massive following since it fares quite impressively in pollution reduction. The 4-stage purification process it uses that involves a pre-filter, odor filter, Vital ionizer, and True HEPA filter make it a force to be reckoned with, easily creating safe conditions indoors for people with sensitive health.

12. Oransi Finn OVHT9908

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  • Room coverage: 400 square feet
  • Filtration stages: 5
  • Filter media and technologies: Pre-filter, HEPA filter, UV light
  • Air filtration efficiency: 98%
  • Air changes per hour: 4
  • CADR rating: 140
  • Speed settings: 3
  • Noise level: 40 to 60 dB
  • Dimensions: 10” x 22” x 7”
  • Warranty: 10 years

It is excellent for asthma, mold spores, and allergies. By considering this model, you can sleep much better as it has been engineered with an airflow of 140 CADR. In addition to this, it features 3 speed levels that you can toggle between depending on your needs and preferences. It can cover a room up to 400 sq. ft., and you can use it throughout the night considering that at its lowest functioning speed it generates only 40 decibels.

Practical Features Integrated
  • The ability to obliterate viruses and bacteria from the air, which is granted by the UV lamp it comes with, makes it especially suited for households with children as it ensures sanitized air to breathe for proper development.
  • The carbon pre-filter removes large particles like mold spores, and it even handles reducing odors from pets and cooking.
  • The 2 sets of fan blades will provide you with clean, fresh, and cool air.
Excellent Customer Service

Without a doubt, you can consider this investment as you will be covered by a 10-year warranty period. Thus, if any issues arise with its operation (as long as you made sure to use it properly and not directly inflict damage on the system through misuse), you will benefit from free repairs from the manufacturing company. In the package, you will find the v-HEPA filter and 2 pre-filters, which means that you are covered within the first year of use and end up saving about $200 on maintenance.

  • Uses a germicidal UV-C light to sanitize the air, clearing it of bacteria and viruses
  • 2 replacement pre-filters are included with the purchase
  • A tower-style unit that looks great and doesn’t take up much floor space
  • 10-year backing against defects provided by the producing company

  • There is no automatic running mode, so you have to adjust the speed manually
  • It’s quite loud on the highest fan speed


Whether you are dealing with air purity issues because of microorganisms, dust, smoke, allergens, or any other pollutant that comes to mind, the Oransi Finn has you covered. Using a HEPA filter and a germicidal UV-C light among others, it promises to keep the air indoors safe to breathe even for the most sensitive individuals.

13. Airthereal Pure Morning APH260

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  • Room coverage: 355 square feet
  • Filtration stages: 3
  • Filter media and technologies: Pre-filter, True HEPA filter, activated carbon filter, UV-C light, anion technology
  • Air filtration efficiency: 99.97%
  • Air changes per hour: 3
  • CADR rating: 152
  • Speed settings: 3
  • Noise level: 28 to 49 dB
  • Dimensions: 13” x 6.7” x 21.2”
  • Warranty: 2 years

This highly capable system has been engineered with a bounty of filter media that aim to reduce all pollutants and allergens residing in the air in your home. As it is suited for spaces upward of 355 sq. ft., you ought to consider it for the larger-size rooms in your home. It also has the ability to refresh the air within 10 minutes regardless of how contaminated the air is. Some of its design features are:

  • Timer – Ranges from 0 to 12 hours.
  • Speeds – The 3-speeds integrated accommodate your needs.
  • Noise – Rated to produce less than 28 dB on the lowest operating setting.
Important Features to Consider
  • Warranty – You will be covered by a 2-year warranty period against defects or repair costs.
  • Filter Replacement – You are required to change the filter every 6 to 8 months.
  • Anion Density – It produces an anion density of 20,000,000 pcs/cubic meter.
Air Quality Monitor

The PM 2.5 sensor will keep a real-time check on the air quality within your home. If it detects that the air quality is poor, it will automatically select an operating mode according to the gravity of the situation and what its optimal functioning level would be at that moment. Some of its particularities are:

  • Filter – The 7-in-1 system is designed with a pre-filter, True HEPA media, and activated carbon filtration. The activated carbon filter also has Nano Mineral, Cold Catalyst, Photo Catalyst, and Molecular Sieve.
  • Sleep Mode – This operating mode will ensure that it runs quietly throughout the night.
  • Capacity – Handles airborne particles down to 0.1 micrometers in size.

You will be thoroughly pleased to know that you can allow it to operate extensively even when you’re not at home due to the fact that it has been independently tested to prove its efficiency and safety, the certifications it flaunts including CARB, ETL, and FCC.

  • Kills germs, bacteria, and viruses lingering in the air thanks to the UV-C light
  • The anion function electrically charges the air to amplify dust, pollen, and odor reduction efforts
  • 12-hour timer lets you organize the unit’s schedule as you like
  • The LED indicator turns red when you must check on the HEPA filter for replacement purposes

  • Replacement filters are a bit expensive
  • While the ozone levels emitted when the anion function is on are not high, they still might pose an issue in people with sensitive lung health


If you really want to make sure the air you inhale is pure, then you ought to consider this Airthereal model since aside from the HEPA filter that we have come to expect purifiers to integrate, it even uses UV-C light to sanitize the air, destroying harmful microorganisms like germs and viruses. Best of all, it does all this without costing much upfront.

14. VEVA 8000

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  • Room coverage: 325 square feet
  • Filtration stages: 2
  • Filter media and technologies: True HEPA filter, 4 x precut activated carbon pre-filters
  • Air filtration efficiency: 99.9%
  • Air changes per hour: 4
  • CADR rating: 100+
  • Speed settings: 3
  • Noise level: 20 to 50 dB
  • Dimensions: 9” x 8” x 23”
  • Warranty: 2 years

The fact that it offers cheap filter replacement options makes it one of the more long-lasting options available, customers having no issues with proper. Nonetheless, don’t let the cost-effective maintenance fool you as it is among the most effective systems when it comes to performance, its 99.9% removal rate of dust and allergens making it a must-have in households where asthma and allergy sufferers reside. The activated charcoal nano-technology provides fresh air in spaces of up to 325 sq. ft.

Powerful and Efficient

The 3 level speed range is very efficient if you want to clean a room fast. In addition to this, it’s very practical as it’s 100% Ozone free and ultra-quiet. Therefore, it’s safe to put it in the baby’s room. Some of its characteristics are:

  • Odor remover – Eliminates odors from pets, smoking, and cooking.
  • Ozone free – Ensures a completely safe operation if asthma sufferers reside in the household.
  • Capable – It is rated by the manufacturer to remove PM2.5.
Important Features to Consider
  • You can keep it on for the whole day by selecting the ultra-quiet feature.
  • You can position this purifier on a tabletop.
  • It is covered by a 2-year guarantee.
Recommended by Professionals

This is without a doubt one of the best models for many reasons. The main idea behind this product is the fact that it has been designed with a smart technology that not many models can boast with. Since it doesn’t generate ozone, you can trust it around children and the elderly. Some of its features are:

  • Efficient – During its functioning, it removes the likes of viruses, mold, pollen, and even microorganisms.
  • HEPA filter – It has been engineered with more than 30% of HEPA fabric than any other model.
  • Seal – The model has been made with a foam border which will ensure an airtight seal.

Not only does the system score well when it comes to PM2.5 pollution reduction, but seeing how it is easy to care for, doesn’t make much noise when it runs and is among the more energy-efficient systems available, you should look into it closely before you draw a conclusion.

  • Aside from removing allergens, it deals with unpleasant odors
  • Budget-friendly option – more affordable than similarly performing units
  • Efficient removal of particles down to 0.3 microns from the air
  • 100% ozone-free, safe for the nursery

  • Low CADR rating as opposed to other models in its power class
  • Makes quite a bit of noise on the high fan speed


If you’re looking for a budget option to steer clear from breathing polluted air at home or at the office, the VEVA 8000 is one of the options you should seriously consider. It might not be perfect since it’s fairly noisy and it doesn’t come with many features, but it does the job it’s supposed to do just as fine as its more expensive counterparts.

15. GermGuardian AC4825

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  • Room coverage: 153 square feet
  • Filtration stages: 3
  • Filter media and technologies: True HEPA, charcoal filter, UV-C light, TIO2 treatment
  • Air filtration efficiency: 99%
  • Air changes per hour: 4.8
  • CADR rating: 118 for dust, 125 for pollen, 99 for smoke
  • Speed settings: 3
  • Noise level: 23 to 48 dB
  • Dimensions: 7” x 10.2” x 21.5”
  • Warranty: 3 years

This is another high-quality model that is able to properly clean the air, ridding it of 99% of pollutants that are commonly found in a household, eliminating basically all of the triggers that would make an allergy sufferer live a low-quality life. It can clean a room that measures up to 153 sq. ft. and it uses 62 watts.


This model has the Energy Star certificate and it has a CADR rating of 100+. Therefore, it’s one of the most efficient on the market. The filtration technologies it uses include:

  • The HEPA media captures pollen, pet danger, and dust mites with unparalleled efficiency, ensuring that even the smallest particles are collected so that the air doesn’t pose a threat to your health anymore.
  • The UV light kills microorganisms, which makes it a viable option for those who are prone to fall ill when flu season comes.
  • Carbon filter removes pet and cooking odors, as well as those produced by cleaning products, which means that your home will smell better than ever as a result of using it.
Limited Maintenance

The greatest thing about this model is that it’s very easy to understand and to use. It comes fully assembled, so you don’t have to spend hours reading the user manual to know how to set it up. If you’ve never had one before, this model is suitable for you. Just plug it in, turn it on, and choose whatever power setting you wish. It comes with an indicator light that will let you know that it’s currently operating. As well as, you can expect to change the filter roughly every 8 months. When the time comes, it will let you know so you don’t have to second guess.

  • Filter replacement is a fairly easy task to perform, even for people who have never owned an air purifier before
  • Produces 4.8 air changes within the hour in a small-size room
  • One of the cheapest air filtering systems available
  • Due to the cost-effective operation, it has been awarded the Energy Star certification

  • Only usable for air filtration in small spaces
  • Gives off an unpleasant plastic smell at times


When money is tight yet you don’t want to be caught off-guard when allergy season comes and have the typical symptoms go haywire again, the GermGuardian is what you need. It might not fare well in large spaces, but as long as you comply with its capabilities when it comes to space coverage, you will be pleasantly surprised by the difference this tower-style purifier makes.

16. Pure Enrichment PureZone

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  • Room coverage: 200 square feet
  • Filtration stages: 3
  • Filter media and technologies: Pre-filter, True HEPA, activated carbon filter, UV-C light
  • Air filtration efficiency: 99.9%
  • Air changes per hour: N/A
  • CADR rating: 80
  • Speed settings: 3
  • Noise level: 30 to 50 dB
  • Dimensions: 10.8” x 6.9” x 12.1”
  • Warranty: 5 years

You no longer stress over the effects of allergies as this purifier catches and eliminates up to 99.97% of dust, pollen, smoke, household odors, and pet dander. Thus, whether you are someone interested in having a furry friend around but your allergies do not permit it, or as soon as you feel pollen in the air your allergies haywire, you need to get your hands on this system. Moreover, seeing how the UV-C light it uses attacks the DNA of viruses, bacteria, and fungi, the system’s germicidal nature ensures the air you breathe is sanitized and truly safe to inhale regardless of your state of health.

Cold and Flu Prevention

The cold season will also bring the cold and flu season. By having this purifier operating throughout the day, you will ensure that all types of airborne allergens are eliminated. Furthermore, if your sinuses are congested, you will wake up rested it will clear the path of the sinuses and reduce swelling. It has been designed with:

  • Pre-filter – As this is the very first filter used in its performance, it has the responsibility to tackle larger-size particles lingering in the air.
  • True HEPA – While the aforementioned filter removes large-size particles, the HEPA part of the system is actually responsible for small-size contaminants down to 0.3 microns.
  • UV-C light – Successfully eliminates cigarette smoke, fungi, and microorganisms regardless of their type.

If you suffer effects from second-hand smoking, you should know that it can eliminate any type of smoke regardless of how small the particles are. Additionally, you can turn the UV light on or off as you desire so that you only benefit from its operation when you see fit.

Whisper-quiet Operation

You will feel comfortable letting it run throughout the day as it produces less noise than a whisper conversation. Some of its convenience features are:

  • Timer – Set it up to 2, 4, or 8 hours in advance.
  • Auto shut-off – Once the timer runs out, it will automatically shut off.
  • Reminder – The indicator light turns on when the time comes for routine filter replacement.

You can consider this model even from a lastingness point of view as it is backed against defects for 5 years from the moment of purchase. Additionally, even though it needs new filters every 6 months, they are less than $20. Thus, you won’t make considerable investments.

  • The UV-C light sanitizes the air by destroying bacteria, viruses, and germs
  • Replacement filters are inexpensive – approximately $17
  • 3 automatic timer settings were provided to limit power draw
  • Rated at 60 watts, so running it without interruption doesn’t make much of a difference when the electric bills are due

  • Multiple reports regarding the short lifespan of the UV bulbs
  • Tends to dry out the air, so you might want to pair it with a humidifier when the cold season comes


The combined forces of the filtering media and technologies it uses make the PureZone a common presence in households where health-conscious people reside. Backing is granted for 5 years on this product, it doesn’t cost much to acquire nor to upkeep, and it stays relatively quiet while it runs.

17. LEVOIT LV-H132

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  • Room coverage: 129 square feet
  • Filtration stages: 3
  • Filter media and technologies: Pre-filter, H13 True HEPA, activated carbon filter
  • Air filtration efficiency: 99.97%
  • Air changes per hour: 2
  • CADR rating: 40
  • Speed settings: 3
  • Noise level: 25 dB
  • Dimensions: 12.6” x 7.9” x 7.9”
  • Warranty: 2 years

It has been designed by experts in the field, so you can acquire it in confidence knowing that your money is spent on a long-lasting product that won’t fluctuate in performance if you ensure proper upkeep. It doesn’t produce ozone or ions in its operation, which ultimately makes it a safe option for asthma sufferers. The 3 integrated filter media it employs actually boast a high efficiency rate of 99.97% when it comes to airborne contaminant reduction, even handling impurities down to 0.3 micrometers or the likes of PM2.5 particles.

Three Stages of Air Filtration

In order to remove as many contaminants as possible, it has been designed with 3 different stages that have 3 different filters, more precisely:

  • Pre-filter – Its purpose is to eliminate bacteria, fungi, and VOCs.
  • True HEPA – This is known as the best residential filtration media as it removes dust mites, dust, and pollen.
  • Activated Carbon Filter – It captures pet odors, common household odors, smoke, and wildfire smoke.

Even though you’re required to replace the filter media it uses, they have a lifespan of up to 6 months, which means that the total costs for system maintenance per year would be around $50, with the electricity consumption included.

Two Air Changes per Hour

Regardless of how polluted the air is inside of your home, this unit will be able to get rid of all of the contaminants that are making your allergies worse. It is an option that you can count on just for smaller spaces, just like the GermGuardian AC4825. It will improve the indoor air quality so you can enjoy an allergy-free zone. Some of its design particularities are:

  • Speeds – You can adjust it according to your own particular needs as it has 3 speeds.
  • Indicator Light – In order to remove second-guessing, it will let you know when to change the filter.
  • Safe – It is CARB, ETL listed, and FCC certified.

Another important factor to consider is its small size (it measures 12.6” by 7.9” by 7.9”) as it allows you to place it even in a cramped space. As it weighs only 6.6 pounds, you won’t have trouble moving it from room to room whenever you desire. Best of all, if you live in states that are exposed to wildfire smoke, this is one of the best models to consider. The reason for this is because it’s CARB Certified –Compliance with California’s stringent standards for indoor cleaning devices, FCC certified, and ETL listed.

  • Check filter indicator lets you know when replacement is necessitated
  • Nightlight with 2 brightness levels to create a soothing atmosphere in the bedroom
  • True HEPA filter makes it able to reduce air pollution issues by 99.97%
  • Consumes only 28 watts, which makes it one of the most energy-efficient options available

  • Doesn’t fare well in medium or large-size rooms
  • One the high fan speed, it’s quite loud and distracting


If you have a relatively small room or space where you want to use an air filter, then this model that is recommended for areas up to 129 square feet is an option worth considering. It uses an H13 True HEPA filter that grants it high efficiency when it comes to tackling the smallest of airborne pollutants, and it is quite effective at removing odors.

Allergy Triggers Image

Keep Your Home Allergy-Proof

If you are among the unfortunate folk who suffer from allergies, you already know how important it is to keep the air indoors free of triggering allergens as, otherwise, your health affliction acts up. It’s bad as it is that we cannot control the outdoor environment and its pollution levels, why leave the situation worse at home too? Instead of doing nothing, you can keep yourself protected from allergy side effects and allergy-proof your home (and even office if you spend late hours there, for that matter) as instructed here.


This is the most common allergen as you can even keep clean and it won’t mean that you are spared of dust lingering in the air as it can come from anything and everywhere. The situation is even direr for those who own pets or who like to freshen up the place by opening the windows whenever they get the chance. As you inhale dust, if you are sensitive to it, your nose and eyes will become irritated, depending on the severity of your allergy, worse events taking place. To cut down on dust pollution, you should:

  • Replace Carpets – There’s no hiding that carpets hide and trap dust. It’s very difficult to get rid of these particles even through vacuuming. Thus, you should consider giving up on carpeting and replacing it with hardwood, tile, and linoleum.
  • Replace Upholstered Furniture – Just like carpets, you will find that upholstered furniture traps dust particles. This is why you need to choose wood, plastic, leather, or vinyl furniture that you can wipe clean. Remember to use a damp cloth.
  • Bathe Pets – Clean your pets frequently, especially if they like to be outside most of the time.

By avoiding mold, you also prevent asthma, congestion, and other devastating symptoms caused by it. The main thing you can do is keep moisture to a minimal level through the use of a dehumidifier in areas of the house where dampness levels tend to exceed the normal 55% to 60% level. However, there are other things you can do, including:

  • Minimalism – You should avoid harboring excess-water-loving plants as, due to the moistness of the soil, mold can grow in it.
  • Wash Bathroom – Wash shower curtains and bathroom tiles with efficient mold-killing cleaning products.
  • Rugs – If you have concrete floors, you need to remove the carpets and use small rugs instead. This will allow easier cleaning.

These annoying creatures can be a pain especially because they are a primary asthma trigger. To survive, they will need water and food, which is why it’s important to thoroughly clean the kitchen after you cook and eat. To take proper action against cockroaches, you must:

  • Food – You need to keep any leftovers or foods like bread in a container that doesn’t have any openings. If they have no source of food, they will leave or die.
  • Wash dishes – Sometimes you will leave leftover food on the plate you just ate. This is why you need to wash and throw any food that’s left behind.
  • Take out the trash – This is the most frequent spot they will visit. If you take the trash out every day, they will have no way of finding food or water.

Effects of contaminants Image

Know Your Facts

It has been noted that up to 8.3% of Americans have asthma. This number is rapidly rising due to the fact that in 2018 it has been noted that within a year, the number has risen from 25 million to 26.5 million. Up to 20.4 million are adults and 6.1 million are children. What’s shocking about this is that more than 3,500 people die from asthma every year. If you have asthma, pollen, pet dander, and dust found in your own home can trigger your symptoms. This is why asthma has resulted in 429,000 hospitalizations and up to 1.3 million emergency room visits annually. This is why it will cost the average person up to 3,500 dollars per year.

Asthma Risk Factors
Asthma Symptoms
  • Being overweight or obese;
  • Actively smoking or exposure to secondhand smoke;
  • Pollution exposure;
  • Exposure to chemicals;
  • Suffering from other allergic conditions;
  • Having a family history of asthma sufferers.
  • Chest pain;
  • Coughing or wheezing attacks;
  • Shortness of breath;
  • Wheezing when you exhale.
  • Chest tightness;
  • Trouble sleeping because of respiratory difficulties.

Frequently Asked Questions

Can it actually relieve allergies?
It’s important to mention that they are not scientifically proven to work. However, many independent laboratories have found that systems with HEPA filters remove all of the contaminants that can trigger an allergic reaction, like dust, pollen, and smoke.

Does it help sinus problems?
Yes. Many specialists recommend their patients to use an air purifier that focuses its operation on allergen removal as it helps ease chronic sinus infections symptoms.

Can it be harmful?
Air purifiers are not dangerous for human health in the slightest. Even systems that produce ozone do not pose a threat as the levels generated are too low to pose a health issue. Their functioning implies ridding the air of contaminations, so there is no danger to using them, but rather many benefits to reap.

Are ionizers bad for asthma?
They are not bad in the sense that their specific operation might cause side effects for individuals who suffer from this affliction. However, ionizers are indeed less performing when it comes to dust, pollen, and tobacco smoke removal as opposed to their filter-based counterparts, so they are not effective when it comes to reducing asthma attack triggers from the air.

Which is better for asthma, a humidifier or an air purifier?
Air filtration systems do exactly what their name implies – rid the air of polluting particles. Some do a better job than others, handling impurities of different sizes and even tackling the issues of air sanitization, which obviously helps asthma sufferers since there won’t be pollutants that can trigger their health condition in the air anymore.

On the other hand, the humidifier doesn’t have an actual impact on allergen levels, so it can’t provide any sort of assistance when it comes to reducing the prevalence of asthma attacks. It does help alleviate your symptoms when your nasal passages are irritated or dry, however.

What are the main asthma triggers?
The irritants and substances that trigger allergies in sensitive individuals are mainly the same ones that trigger asthma attacks. While the triggers themselves differ from one person to another, these usually include smoke and similar irritants, mold spores, pollen, pet dander, and dust mites. Other triggers are stress, strong emotions, GERD, cold air, sulfites, and respiratory infections.

What air purifier do allergists recommend?
Since the air indoors is filled with quite an alarming amount of impurities, proper action must be taken if you want to keep allergy symptoms under control. For this, experts recommend that you either use a HEPA filter air purifier or turn the central HVAC system into a whole house filtration means by installing a better quality air filter.

Can asthma go away?
If the health issue has developed in one’s early stages of life, there are chances of outgrowing it. As long as a child receives proper treatment from a specialized doctor and is kept under close surveillance, chances are that asthma will go away in a few years. It can, however, be a temporary change of things and the affliction might come back later on. For those who have severe asthma, on the other hand, chances of outgrowing it are slim to none.

How long does it take an air purifier to clean a room?
While a slight difference is made from the first few minutes after the unit starts running, noticeable air quality improvement takes between 15 minutes and 2 hours. This largely depends on the fan speed you select and the model’s specific power in terms of air purification.


In a study released by the A.A.F.A., it was highlighted that over 50 million Americans experience a form of allergic reaction every year, while medication costs related to treating allergy symptoms exceed $18 billion. Thus, there’s no wonder to the fact that asthma and allergy air purification systems are witnessing constant evolution and improvement, plenty of people worldwide, not only in the U.S., being in need of their allergy trigger removing services. Here, we reviewed the best this market offers at the moment to make sure you are given only qualitative recommendations. Before we end, we want to go over some of the models that stand out to further assist you in making a decision.

Best Overall: IQAir HealthPro Plus

A medical-grade system that you can use for your home to ensure sanitized air, the IQAir is a costly yet worthwhile acquisition we recommend to all interested customers. It can cover up to 1,125 sq. ft., so you can rest assured knowing that there is no room or space it cannot provide air purification services in. In terms of performance, as it tackles impurities down to 0.003 micrometers, even particles 10 times smaller than viruses don’t stand a chance against it. Moreover, the company backs it for 10 years against defects, which means that repairs won’t actually cost you a thing.

Editor’s Choice: Dyson Pure Cool TP04

Aside from the impeccable aesthetics that make the TP04 a sought-after product since it goes well with any modern décor, what makes it stand out is the performance it flaunts. This is a 2-in-1 unit, meaning that it works as an air filtration system and a fan. Therefore, when the hot season comes it helps in more ways than one since it produces a refreshing, cooling breeze. When you don’t need it to double as a fan and only want to use it for air purification, use the backward airflow mode and the deal is done. For all these reasons and more (the rest enumerated in the complete review), this Dyson entry stole our hearts.

Best Air Purifier for Asthma and Allergies with UV Light: GermGuardian AC4825

Among the most sought-after products at the moment, the GermGuardian is made all the more appealing as it comes at a very accessible price. Furthermore, filter replacements aren’t costly at all, and upkeep is not pretentious in the slightest, so convenience is key with it. However, most people opt for it as it employs UV light in its operation, meaning that it can destroy the DNA of microorganisms to leave you with sanitized air to inhale and ensure your health is protected.

Best Air Purifier for Asthma and Allergies for Bedroom: Rabbit Air MinusA2

The main criteria for choosing an air purifier for the bedroom is for the unit to stay silent when it runs. Seeing how the MinusA2 is quite a pro at this, producing only 25.6 dB on the lowest of its 4 fan speeds, it’s a device that you can soundly sleep next to throughout the whole night. Aside from the fact that it’s quiet, it impresses when it comes to efficiency since the pollutant removal rate it boasts is 99.97%. What gives it this capability stands in the 6-stage filtration process it passes the air through.

Best Air Purifier for Asthma and Allergies for the Money: Alen BreatheSmart FLEX

Just because you are looking for a highly efficient air filter in terms of allergen and pollutant reduction, one that covers vast spaces too, it doesn’t mean that you have to spend a fortune on it. If you don’t have the biggest budget at your disposal and the room that you want to use the purifier in doesn’t exceed 700 square feet in size, this Alen entry is what you ought to look into. The H13 True HEPA filter it uses exceeds expectations in terms of airborne particles removal since it tackles even the ones down to 0.1 microns in size. Moreover, it produces a new air change every 30 minutes to uphold proper conditions for sensitive individuals, guaranteeing that the air indoors won’t trigger any unwanted symptoms.

Markus Mackay
Markus Mackay
Our resident expert in all things AC-related, Markus is a never-ending source of knowledge regarding how these systems work. What makes him so savvy in this field is his direct experience that he acquired while working in sales. The connections he made during that period also came in handy here as Markus knows a lot of experts in this field. With each article uploaded, he makes sure to gather the expertise of his more experienced ex-peers as well, making sure to provide readers with reliable reviews and articles.
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