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12 Best Rated Window Fans

BWF0522E-BM

43

Models Considered

78

Hours of Research

3

Experts Interviewed

814

Consumer Reviews Analyzed

S ummer is great for a lot of fun activities, but it may be really difficult to get over the discomfort caused by high temperatures. During this period, most people turn toward cooling devices to make the indoors feel more tolerable. Air conditioners might be more efficient, but their cost isn’t to the liking of everyone, so a more accessible alternative is in demand. If you are interested in a smaller-size product at a low cost, look into a window fan like the entries recommended here.

Their mounting style might seem cumbersome, but you will see in the lines below that setup doesn’t take more than a few minutes and the cooling effect will soon be noticeable. If this is your first time coming across these fans, you will be happy to see that we have thoroughly searched the market and selected only the best-performing products available.

Not only fans can be mounted inside the sill, but also compact ACs can be an excellent option for confined spaces. See the best small window air conditioners as well if you seek an effective manner to cool down when the heat waves come.

Top 12 Window Fans Compared

Photo Product Speed Settings Blade Size Required Window Size Reversible Thermostat Price

Best Overall

1. AirKing 9166

3 20” 27” to 38” W by 26.25” H Check Price at Amazon

Editor’s Choice

2. Lasko 2155A

3 16” 26. 5” to 34. 5” W by 22” H Check Price at Amazon

3. AirKing 9155

3 16” 26.5” W by 22” H Check Price at Amazon

4. Genesis Twin Fan A1

3 2 x 9” up to 37” W Check Price at Amazon

Best for Kitchen

5. Bionaire BW2300

3 2 x 8.5” 24” to 37” W Check Price at Amazon

Best for Smoking

6. Comfort Zone CZ310R

3 2 x 9” 23.5” to 37” W by 14” H Check Price at Amazon

7. Optimus F-5280

2 2 x 7” Standard window Manually Check Price at Amazon

Best for the Money

8. Holmes Twin Fan

3 2 x 6” Standard window Manually Check Price at Amazon

9. Lotus Analin Dual Blade

3 2 x 9” 22.5” to 33” W Manually Check Price at Amazon

10. Bionaire BWF0522E-BU

3 3 x 6” Up to 37” W Manually Check Price at Amazon

11. Holmes HAWF2043

2 2 x 8.5” Up to 37” W Check Price at Amazon

12. Bionaire BWF0502M-WM

3 3 x 6” Standard window Manually Manual Check Price at Amazon

1. AirKing 9166

Check Price at Amazon


Specifications:

  • CFM rating: 3,560
  • RPM rating: 1,600
  • Power consumption: 170 watts
  • Number of blades: 3
  • Blade size: 20”
  • Speed settings: 3
  • Type: Single phase
  • Motor: 1/6 HP
  • Required window size: 27”-38” W x 26.25” H
  • Cord length: 7’
  • Materials: Housing – plastic; Blade and grill – powder coated steel
  • Dimensions: 26.75” x 11.25” x 26.25”
  • Weight: 36.6 pounds
  • Warranty: 1 year


It is a powerful system that can be used in a residential or work environment, boasting an airflow of 3,560 CFM. Most models need to be taken down when the window is closed, but not this model, as it allows the window to close in case of bad weather situations or for house security purposes. It also provides easy setup and control, due to its front-mounted switch that can be used to set up its cooling speed. The motor is reversible so it will spin the blades both ways, enabling the fan to bring cold air and remove stale, moist air from the house.

Smart and Innovative

  • Rotary switch controls – will allow you to choose your favorite settings fast
  • ETL and OSHA compliant – these certifications guarantee that it won’t pose any electrical or environmental threat
  • 3 speed options – allow you to create the atmosphere you need

Practical Use

It flaunts a blade size of 20″ and weighs 36 lbs. Please make sure that your window is 27″- 38″ (W) x 26.2″ (H). As aforesaid, it features both intake and exhaust functions, which means that warm air will be a matter of the past.

Some of its traits are:

  • Solid housing – Made with impact-resistant plastic and features powder coating on the steel front grill and blade
  • Rapid motor – Delivers high-velocity air movement without requiring intense maintenance
  • Versatile – It can fit large window openings and slide open vertically or horizontally
If you want to compare other high-velocity fans to this one right here, make sure you don’t skip our article that gathers only the most effective models that are worth buying so that you can say you made an informed purchase.

PROS

  • You can shut close the window behind it for home security purposes
  • Impressive airflow value
  • The mounting frame slides to the sides to make the fan suitable for many sill sizes
  • The switch simplifies going from one function to the other
  • The blades are very long

CONS

  • It doesn’t come with a remote, only a center-placed switch
  • It vibrates very hard at every speed, causing it to make a humming sound


VERDICT

It doesn’t produce a lot of noise and draws a minimum amount of energy, creating good sleep conditions that don’t cost as much as those offered by an air conditioner, for instance. The window can be closed behind it, which is truly great, as you don’t have to worry that intruders may spot a weak entry point into your home.



Q: Does it make a disturbing noise while spinning?
A: While it does put out some noise, it is mainly white noise. Also, consider that it is a very powerful model that can match large rooms, where the sound may be less noticeable.


2. Lasko 2155A

Check Price at Amazon


Specifications:

  • CFM rating: 2,470
  • RPM rating: N/A
  • Power consumption: 90 watts
  • Number of blades: 3
  • Blade size: 16”
  • Speed settings: 3
  • Type: Single phase
  • Motor: Reverse-motor
  • Required window size: 26.5”-34.5” W x 22” H
  • Cord length: 5’
  • Materials: Housing – plastic
  • Dimensions: 26.5” x 8.25” x 22”
  • Weight: 14.7 pounds
  • Warranty: 1 year


It presents a single-fan design but remains one of the most dependable models. It has 3 velocity levels and it can rotate both ways, so it takes out warm air and blows cold air in return. The motor is highly powerful, delivering an impressive CFM, as it can circulate 2,470 cubic feet of air on the highest speed setting.
The lateral panels extend, so it can be mounted on openings with different dimensions; the maximum window width accepted is between 26.5” and 34.5”. Correspondently, the maximum height it matches is 22”. As it has a strong airflow, it can provide good air movement in large rooms, while staying fairly quiet, according to the purchasers who had the chance to test it.

Some of its design aspects are:

  • Settings – there are 3 intake and 3 exhaust speeds
  • Blue Plug safety fuse technology – it will detect a potentially harmful electrical fault and cut power immediately. This will prevent a safety threat
  • Safe – this is an ETL-listed product, which is proof that it meets high safety standards

Factors to Consider

  • Area coverage – 1,200 sq. ft.
  • Power cord – 5 feet
  • Airflow – 2,470 CFM on the highest speed; 1,360 on the lowest

Storm Guard

You can close the window behind it when bad weather installs so the window will stay protected and you won’t need to mount the fan again when sunny weather returns. You can also do this every night and prevent intruders from perceiving this as the weak spot for your home. You can purchase in confidence as this particular model was built in the US after American norms.

The grills are rust-resistant and white powder-coated, so they will retain quality irrespective of the conditions around them. Also, as it arrives fully put together, you can mount it right away without professional help.

Extend your array of research and have a look at another type of air conditioner that also requires mounting on the window, but has a different type of setup. Vertical window ACs are a space-saving option that can successfully cool down your home and that you can take out when you no longer use it.

PROS

  • It’s powerful so it can cover large rooms up to 1,200 sq. ft.
  • The storm guard securely closes the window behind it
  • The reverse function is mechanically selected with the rotating switch
  • The side sliders allow you to easily mount it on multiple window styles
  • It’s surprisingly silent for the power it outputs

CONS

  • The knob switch is hard to grab and rotate
  • The cord comes out from the switch area and hangs down from there


VERDICT

Without further ado, we can say that this fan is an excellent choice as a whole house fan that can make you feel considerably more comfortable in the summer. It mounts in mere minutes and can fit many sill sizes, so you won’t have a hard time setting it. It’s robust and has a solid motor that spins at high velocities, allowing the fan to deal with stale and warm air that is immediately sent outside.



Q: Does it need to be permanently mounted?
A: No. This is a slide-out model that can be relocated whenever you want. You just need to mount 4 screws into the frame for the unit to click into.



3. AirKing 9155

Check Price at Amazon


Specifications:

  • CFM rating: 2,470
  • RPM rating: 1,370
  • Power consumption: 90 watts
  • Number of blades: 3
  • Blade size: 16”
  • Speed settings: 3
  • Type: Single phase
  • Motor: 1/16 HP
  • Required window size: 26.5”-34.5” W x 22” H
  • Cord length: 7’
  • Materials: Housing – high-impact styrene; Blade – ABS plastic; Front grill – metal
  • Dimensions: 26.5” x 8.25” x 22”
  • Weight: 15 pounds
  • Warranty: 1 year


It can adapt to plenty of window dimensions and can be mounted both in residential and workspaces. It comes with a strong built-in motor, able to freshen the room in an instant. The build material is hard plastic, which ensures longevity. Conversely, the front grill and blades are made of steel contrasted to other models that offer them in plastic, so you can expect improved durability.

Key Aspects

  • Motor – it is permanently lubricated and features a permanent split capacitor; boasts a speed of 1,370 RPM at the highest intensity
  • Speed – it offers 3 speed options; the peak airflow it can reach is 2,470 CFM
  • Safe – it will keep you safe and secure as it’s ETL and OSHA compliant
  • Controls – the rotary switch is situated at the front to let you easily change settings

Low Costs

It moves the air inside and creates a more pleasant atmosphere. It can expand to match a broad diversity of windows. You will find that the motor is rated at 0.5 amps and it is cost-efficient as it uses a peak of 90 watts.

  • Functional – you will find that the split capacity motor is permanently lubricated so it doesn’t require careful upkeep
  • Housing – the exterior shell is made from high-impact styrene, so it will last for numerous years to come
  • 16” blades – the length is generous, so a large amount of air manages to be circulated
  • You don’t need to detach it from the window to close it, and this is expedient, as you will be able to lock the house with ease as well as to keep the rain from reaching inside without having to take out the unit. It only includes one switch that will, however, allow you to choose from more than two speeds.

In case you want to feel the draft of cool air right onto your skin, you might want to get a box fan that sends coolness directly so you will immediately feel more comfortable. With a compact design and great cooling abilities, these fans are often picked as a low-cost yet effective option.

PROS

  • The control switch is front-mounted for ease of use
  • The three velocities provide high airflow
  • The intake and exhaust can be switched electronically
  • It’s powerful enough to work as a whole house fan
  • Both directions have three speed levels
  • The power cable is long so you will not be restricted by a plug nearby

CONS

  • Many users complained it’s very noisy
  • A thermostat is not added to the construction


VERDICT

The strong motor ensures it will not have trouble taking down the heat and making the air much more breathable. It’s ETL and OSHA compliant and presents a long power cord so you can position it safely. The blades are long, so this makes up for the single-fan design. Plus, it will last for numerous years without thorough maintenance required.



Q: ? Does it need to be unplugged every time you need to close the window?
A: No. This action doesn’t affect it as the window can just be slid behind it.



4. Genesis Twin Fan A1

Check Price at Amazon


Specifications:

  • CFM rating: 2,500
  • RPM rating: N/A
  • Power consumption: N/A
  • Number of blades: 12
  • Blade size: 9”
  • Speed settings: 3
  • Type: Twin fan
  • Motor: Reverse-motor
  • Required window size: 24”-37” W
  • Cord length: 6’
  • Materials: Housing – plastic
  • Dimensions: 24″ x 12″ x 4″
  • Weight: 8.4 pounds
  • Warranty: 1 year


This product boasts 3 speeds and two-sided airflow that can be adjusted from low to high. If you want to modify the settings, you can easily do this through the marked button placed on the front. It is ETL listed so it will preserve quality through the years. It can be mounted as a window unit, or you can use it freestanding as it includes 2 removable legs.

Essential Features

  • Speeds – with 3 settings, it allows for more precise coolness customization and can match the user’s needs more precisely
  • Motors – the unit has 2 autonomous copper motors. One fan is fitting for intake and the other for exhaust
  • Blades – it comes with dual motors and two 9” heads being more performant than other similar models

Expandable Panels Included

The foldout lateral panels will allow you to mount it into almost any window. It can enlarge on either side up to 6.5”. You can extend it so it measures 24 x 12 x 4 inches.

Some of its qualities are:

  • Thermostat – it has a range of 60F to 80F and allows for easy temperature control
  • Indicator light – the LED indicators have labels above them, representing distinct temperature values, so you can easily keep track of the atmosphere inside
  • Handle – makes the unit easier to carry and reposition

Superior Quality Motors

It packs a set of copper motors, which are known to be highly resistant to exterior conditions. Thus, it will be able to endure the sunrays, temperature variation, and even the humidity that is common in certain areas. It also works quietly, while delivering a good airflow of 2,500 CFM.

By far, pedestal fans are the most popular pick due to their easy installation and slim design. Have a look at our selection and see for yourself why is it that most people have a tall fan within reach during the summer blaze.

PROS

  • The airflow circulation reaches extended values
  • The exhaust and intake can be switched electronically
  • It has feet for tabletop use
  • The fans’ blades span 9”
  • Each fan can work independently or they can work simultaneously

CONS

  • A power shortage makes it lose its settings
  • Lacks a remote


VERDICT

As one of the best dual fans in its price and size range, it’s powerful enough to deal with the heat and moisture in a medium-sized room. It mounts with no effort and provides both functions that eliminate stale and hot air and bring fresh air into the room. It circulates a great amount of air and is very easy to operate thanks to the explicative control panel.


Q: Does it have an auto-restart function??
A: No. You will need to turn it on manually if a power shortage occurs.



5. Bionaire BW2300

Check Price at Amazon


Specifications:

  • CFM rating: N/A
  • RPM rating: N/A
  • Power consumption: 80 watts
  • Number of blades: 12
  • Blade size: 9”
  • Speed settings: 3
  • Type: Twin fan
  • Motor: 110-120V, 60 Hz
  • Required window size: 24”-37” W
  • Cord length: 6’
  • Materials: Housing – plastic
  • Dimensions: 24.25” x 4.25” x 13”
  • Weight: 8.8 pounds
  • Warranty: 5 years


This is a great cooling option for anyone who wants things simple and effective. It provides electrically reversible airflow for year-round use and comes with a remote so you can expediently adjust settings from far off. The integrated thermostat is programmable, so it will turn the unit on or off as necessitated to preserve coolness. It presents the classic electronic controls for intuitive use as well as an LCD on the front, which shows the current indoor temperature and the value you have chosen.

Versatile and Powerful

The two fans can work simultaneously to draw the breezy air from outside and push the hot air from inside or operate individually, one performing the first function and the other the second. It fits double-hung, casement, or vertical slider windows that measure from 24” to 37” in width.

Some of its qualities include:

  • 3 speeds available – high, medium, and low
  • Reversible airflow control – makes it apposite for all-year use

The digital display is easy to view even in dark or low light and thanks to the included remote, you can make all the selections from up to 15 feet away. For increased confidence in the product, the manufacturer offers a 5-year service assurance against flaws.

Safe and Practical

When it comes to electric devices, it is good to confirm they don’t pose a risk to your house. Fortunately, this unit has many implemented safety characteristics that will allow you to sleep soundly. Among the most significant is the UL certification, which guarantees that the cord is well-made and won’t cause the unit to heat up.

Other elements that reflect its quality built are:

  • Motors – water-resistant so that you can let the unit run even when it rains, boasts a speed of 1,280 RPM
  • Temperature selection – from 60F to 80F; it turns on and off as needed to maintain your setting
If you are interested in a stronger cooling source, we recommend investing in a small portable air conditioner. It can be easily relocated around the house to keep the heat down with a lower power intake compared with a customary unit.

PROS

  • Comes with a remote control so you can access it from a distance
  • It offers a thermostat for accurate temp control
  • The service period lasts very long
  • The airflow reverses automatically
  • It has an LCD that shows details on the temperature
  • The side panels are very generous so it’s easy to mount on any window size

CONS

  • The highest speed makes a very loud noise
  • After a power shortage, it will not retake the previous selections made
  • The temperature readings are often inaccurate


VERDICT

Whenever you want to get rid of the bad food smell that wraps around the house, turn this fan on and you will immediately sense the difference. The exhaust function is highly efficient in getting out the warm, moist, and smelly air, while the intake ensures cool air is brought in return. All the selections are available on the user-friendly control panel.


Q: Will it remove smoke and cooking odors??
A: It is quite effective at moving the air around, so it can help you get rid of unpleasant odors.


6. Comfort Zone CZ310R

Check Price at Amazon


Specifications:

  • CFM rating: 431
  • RPM rating: N/A
  • Power consumption: 70 watts
  • Number of blades: 3
  • Blade size: 2 x 9”
  • Speed settings: 3
  • Type: Twin fan
  • Required window size: 23.5”- 37” W by 14” H
  • Cord length: 5’
  • Materials: Housing – plastic; Blade and grill – powder coated steel
  • Dimensions: 25.7” x 5.6” x 14.6”
  • Weight: 6.62 pounds
  • Warranty: 1 year


This dual-fan is one of those that can easily lower the air temperature as it relies on a strong reversible motor that effectively draws the hot air from inside and brings back cool air. When set to cool, it instantly brings cold air to help you feel more at ease, while the exhaust setting enables it to remove, humid, stale air from the room. The switch between the two settings is made using the included remote. Hence, you won’t have to walk near the fan to set it to work, as this can be done by sitting far from it. With three speeds put at your disposal, you can select the intensity of the air draft depending on the size of the room. Since both fans move in both directions and you can decide whether you want it to intake air, exhaust, or circulate it, it’s a smart pick if you are a smoker and you need a quick alternative to rid your home of the unpleasant cigarette odor.

Key features:

  • 3-speed electronically reversible motor – by simply pushing a button, the spinning direction of the blades is instantly changed
  • Remote control convenience – easily control the fan from a distance
  • Three functions are available – it can bring air from the outside, take out the warm air from inside, or create drafts of cold air
  • Expandable side panels – fitting many window sizes is not an issue as the width can be easily modified

A great design hack comes with side expanders that make it easy to mount the fan on any window size, so you won’t be conditioned to make any changes onto the sill. As such, it fits widths ranging from 23.5” to 37” and you can securely lock the fan in place. It also has feet that you can attach if you want to use it as a tabletop fan. As it brings fresh air into the home, don’t worry that bugs and small debris will come along too, as it has a removable washable mesh that keeps impurities away. Also, to avert hot and moist air from coming inside while the fan is not in use, the manufacturer added a detachable cover that shields your home.

See our best-rated dehumidifiers and start fighting the effects of high humidity. If you manage to maintain moisture within normal parameters, your home will feel cooler and more comfortable.

PROS

  • The motor rotates at three velocities
  • Comes with a remote so you can easily make changes without getting off the couch
  • Works great for removing smoke odor
  • Incorporates a mesh filter to keep insects away
  • Has a protective cover
  • It comes with feet in case you want to place it on a table

CONS

  • It doesn’t have a thermostat for temperature control
  • It makes an annoying humming noise
  • Short warranty, compared to other models in its price range


VERDICT

Packed with multiple convenience features and relying on a robust motor, this fan is an excellent ally in combating high temperatures. Since it fits most standard windows, it will not be a problem setting it up yourself and you will enjoy the great performance for many years to come. All these qualities make it a reliable pick at a great cost.



Q: Can it be installed vertically?
A: Yes, if the side panels are securely locked in place, there should be no problem mounting it upright.



7. Optimus F-5280

Check Price at Amazon


Specifications:

  • CFM rating: N/A
  • RPM rating: N/A
  • Power consumption: N/A
  • Number of blades: 6
  • Blade size: 7”
  • Speed settings: 2
  • Type: Twin fan
  • Motor: Reverse-motor
  • Required window size: 21.5” W x 6.5” H
  • Cord length: 5.5’
  • Materials: Housing – metal
  • Dimensions: 22.6” x 5.3” x 11.8”
  • Weight: 5.7 pounds
  • Warranty: 1 year


It packs a forceful motor that guarantees it can face extensive use, pulling in the cold air outside and exhausting the musty air from indoors to create a more suited environment for you to live in. Besides, through the thorough air movement it employs, it is likely to decrease the heat level indoors as well.

Durable Motor

It resists corrosion, so even if it rains, this won’t cut down on its lifespan. Moreover, there are no costly repairs that you have to think about. It is made with thick plastic and features a safety grill that protects youngsters and pets from hurting themselves.

Manually Reversible

It can be inverted and this permits it to function in two ways, namely to draw the fresh air from outside and dissipate it indoors or to function as an exhausting mechanism, releasing the hot air outdoors. Take note that the changes must be made manually. It has two speeds, allowing you to select a higher or a lower airstream and, this way, adjust the intensity of the noise it releases.

Its design marks are:

  • Slide screens – if there’s extra space on either side, use the built-in lateral screens
  • Carry handle – take it anywhere you go with the smallest amount of effort from your account
  • Base feet – position it on a range of surfaces as it will securely sit in position at all times

PROS

  • It has feet for freestanding operation
  • The motor self-lubricates to ensure it will run smoothly
  • The side screens are very wide so they extend to big lengths
  • Does a great job ridding the air of unpleasant odors

CONS

  • Only 2 speeds to pick between
  • It reverses manually
  • Doesn’t offer a thermostat


VERDICT

If you are looking for a fan that can successfully take out stale air and bring coolness in return, you might be very happy with what this model has to offer. It relies on a solid all-season motor that keep sit running flawlessly throughout the year and it manages to take out damp and musty air from the house while bringing cool air back.


Q: How wide is it?
A: It has a frame width of 21.5” to which you can add up to 6.5” on each side through the accordion extensions.



8. Holmes Twin Fan

Check Price at Amazon


Specifications:

    • CFM rating: 320
    • RPM rating: 1,480
    • Power consumption: 90 watts
    • Number of blades: 6
    • Blade size: 7”
    • Speed settings: 2
    • Type: Twin fan
    • Motor: 120V, 60 Hz
    • Required window size: 22”-29” W
    • Cord length: 6’
    • Materials: Housing – plastic
    • Dimensions: 22.7″ x 11.7″ x 5.3″
    • Weight: 6 pounds
    • Warranty: 1 year


As it will get in contact with the exterior, it was suited with all the compulsory elements to resist air moisture and dust. Thus, the motors won’t be affected by environmental variations, a quality that will grant them a longer lifespan. It can fit a variety of window sizes, like double-hung, casement, or vertical-slider types, and is a good match for a smaller room. It presents 2 speeds for quicker or slower air movement and an integrated thermostat that allows you to keep an eye on the indoor conditions. The thermostat turns the fans on and off to ensure they function until a certain temperature is achieved.

Each fan can be independently reversed so it can either take cool air and send it throughout the room or release the moist, hot indoor air outside, to ensure a comfortable living ambiance. The reverse is done using the two bottom buttons that automatically change the spinning direction.

Numerous customers observed that it is also easy to clean, so it won’t bring inside any dust, pollen, or other particles that would contaminate the air. For any problem you might encounter, refer to the warranty that lasts for 3 years and have your unit fixed free of charge.

Fully Adjustable Operation

  • Speeds – it boasts 2 speed options for better adaptability
  • Airflow – you can manually adjust the way it faces to quickly switch from intake to exhaust. It is rated for 320 CFM
  • Energy-efficient – draws from 35W to 90W, contingent on the setting you select

Custom Fit for All

  • Extender screen and panel – make it suitable for a variety of windows to ensure a secured fit
  • Strong – it is fit for areas that measure up to 500 sq. ft.
  • Motors – water and weather-resistant

PROS

  • Offers the convenience of a thermostat
  • It can cover large rooms without showing signs of weakness
  • Very low-consuming, so don’t worry about increasing your monthly bills
  • It has a nice service policy covering parts and labor

CONS

  • It only reverses manually
  • The cord is very short


VERDICT

You can consider it a great deal, starting with the reliable brand that sells it. The power is impressive, managing to drop the temperature to a very comfortable level in medium-size rooms. It mounts in a few minutes and you can easily take it out to reverse it when needed.



Q: Is there a remote in the box?
A: No, unfortunately, no remote is included. You will have to make the selections using the buttons on the panel.



9. Lotus Analin Dual Blade

Check Price at Amazon


Specifications:

  • CFM rating: 2,500
  • RPM rating: N/A
  • Power consumption: N/A
  • Number of blades: 6
  • Blade size: 9”
  • Speed settings: 2
  • Type: Twin fan
  • Motor: Reverse-motor
  • Required window size: 22.5”-33” W
  • Cord length: 6’
  • Materials: Housing – plastic; Blades – plastic
  • Dimensions: 22.5” x 4” x 10.75”
  • Weight: N/A
  • Warranty: 1 year


This model can provide fresh, cool air inside using the 9” blade diameter and powerful dual motor. The airflow can reach an impressive 2,500 CFM value that places it among the strongest in its class. It comes with a removable fabric cover that can keep out humidity and bugs when it is not used. Its lateral panels are extendable, so it can fit any type of double-hung and slider windows of various sizes.

Efficient and Expedient

It can perform two operations, namely to evacuate the warm air and to draw the fresh air from outside. You will only need to position it in the right direction, altering its functions until it manages to create a breezy atmosphere.

The package includes a cover as well that can protect the mechanism against dust, humidity, and insects, when not in use. Plus, you can place the unit on a table for spot cooling, as the two feet are detachable.

  • 2 Levels of speed – provide a soundless action, meaning that it can be used during daytime but also at night time
  • Safe – you can let it function even when you’re not at home as it has been individually verified for safety and it complies with the ETL standards.
  • Practical – it is fit for the majority of openings that measure 22 1/2″ – 33″ L x 4″ and is 10-3/4″ tall

PROS

  • The cover keeps insects and impurities away when not turned on
  • It has a powerful airflow and even manages to get rid of moisture
  • The included feet allow you to use it as a tabletop fan
  • The noise created is not disturbing

CONS

  • It lacks a thermostat
  • The only way to reverse the fans is to manually flip it over
  • It doesn’t work too well on sliding windows


VERDICT

It’s a fairly powerful fan that can be mounted for either intake or exhaust, but the change must be done manually as there is no switch to reverse the spinning blades. It has expandable side panels that make it suitable for a wide range of sill sizes but keep in mind that it is hard to mount vertically on a sliding window. Other than that, it’s a good fan that keeps heat away.


Q: Do I need to remove my window screen before installing it?
A: No, the screen can stay in place as it won’t interfere with the installation.



10. Bionaire BWF0522E-BU

Check Price at Amazon


Specifications:

    • CFM rating: N/A
    • RPM rating: N/A
    • Power consumption: 45 watts
    • Number of blades: 27
    • Blade size: 6”
    • Speed settings: 3
    • Type: Triple fan
    • Motor: Weather resistant
    • Required window size: 25.6” W x 7.9” H
    • Cord length: 6’
    • Materials: N/A
    • Dimensions: 22.6” x 5.3” x 11.8”
    • Weight: 6.4 pounds
    • Warranty: 5 years


This model incorporates three fans that can function independently, therefore, if you are looking for better customization possibilities, this is a nice pick. It even has a small control board placed near the fans that allows you to operate the electronic thermostat and pick the desired speed.

Electronic Thermostat

Without a thermostat, it gets pretty difficult to obtain the desired indoor conditions. Nonetheless, this model doesn’t have this problem, as it allows you to select the desired temperature and leave it to the unit to reach it.

Its peculiarities are:

  • Efficient – up to 40% more airspeed than other competitors
  • Compact design – ensures it will fit your window just fine
  • Mount – it goes either on the vertical or the horizontal

Among its main features stands the “Firm Fit” lock that makes it extremely secure as there is no free space left between it and the window casing.

5-Year Service Assurance

Mount and use it correctly to benefit from the service contract. The manufacturer covers it for up to 5 years against damages caused by poor workmanship, providing free repairs or even an integral replacement.

Some of its high points include:

  • Suitability – it matches double-hung windows with an opening of 65cm (W) x 20cm (H)
  • Built-in extender – it measures 17cm, with 2 slider panels that measure 6 cm each. It can be spread from 6.69” to 8.66”

PROS

  • Thanks to the thermostat, you can set the desired temperature
  • It comes with a very long protection policy
  • Boasts a 3-fan configuration for maximized air output
  • It has a low-profile design that easily fits small windows

CONS

  • The reverse is done manually
  • When mounted vertically, it’s not very stable


VERDICT

It’s an eye-catching model thanks to the black housing that can match modern dark sills. Boasting the same 3-fan configuration as many other Bionaire models, it manages to circulate air at a high rate, truly managing to lower the discomfort level on torrid days. The fact that it can be reversed is good, but it can only be done manually, so it’s a bit of a hassle.


Q: Will one fan intake cool air and the other exhaust hot air simultaneously?
A: No. This unit can do only one operation at a time. To reverse its action, you will need to manually detach it from the frame and switch its direction.



11. Holmes HAWF2043

Check Price at Amazon


Specifications:

  • CFM rating: N/A
  • RPM rating: N/A
  • Power consumption: N/A
  • Number of blades: 12
  • Blade size: 8”
  • Speed settings: 3
  • Type: Twin fan
  • Motor: Reverse-motor
  • Required window size: 25” W x 12” H
  • Cord length: 6’
  • Materials: Housing – plastic
  • Dimensions: 25.9” x 13.5” x 5.7”
  • Weight: 7.5 pounds
  • Warranty: 3 years


It draws in fresh outdoor air and exhausts stale indoor air with an airflow capacity of 410 CFM. However, this unit can take it a step further as it can simultaneously do both due to the independent fans. The included thermostat decides how and when it runs to preserve your selected temperature.

Other great characteristics are:

  • Motors – waterproof design ensures safe use even when it rains
  • Adaptable – suited for double-hung and slider windows
  • Power draw – 60% more cost-efficient than most of the competitors
  • Thermostat – you can decide what temperature it should reach and maintain it through the 2 digital comfort settings that are easy to comprehend.

It also helps cast away unwanted smells from cooking and pets. Furthermore, you have the option to use one fan or both of them simultaneously. A great feature to keep in mind is the automatic restart so it will turn back on if you’ve experienced a power outage to ensure you’ll always be supplied with fresh air. When mounting it, the window can measure a maximum of 37” as it comes with two side panels that expand. Also, the cord is 6 feet long so you won’t be restricted by the positioning of the outlet.

White Noise

Since it uses a motor, you cannot presume it to be completely quiet, but according to most customers’ reviews, the sound it produces is mostly white. Accordingly, it can be used over the night and may even create a more relaxing atmosphere by covering the rustle of the street.

PROS

  • The side panels take it to an extended window length
  • The two fans can work together or separately
  • It boasts electronic thermostat and reverse
  • You will get a generous warranty with the purchase
  • Accommodates various window styles

CONS

  • The controls are poor, with only one button available
  • It’s reportedly noisy, which is disturbing if installed in a bedroom
  • The highest level doesn’t feel as powerful as expected


VERDICT

Features like the electronic thermostat and reversible motor or the automatic restart make it a smart pick, compared to similar units that don’t offer them. It’s a bit tall, so it takes a lot from the window, but that shouldn’t be a problem as it even fits the widest 37” sills.



Q: Can you use it continuously without employing the thermostat?
A: Yes. You just need to press the button until the unit selects continuous run.



12. Bionaire BWF0502M-WM

Check Price at Amazon


Specifications:

    • CFM rating: n/a
    • RPM rating: N/A
    • Power consumption: N/A
    • Number of blades: 27
    • Blade size: 6”
    • Speed settings: 3
    • Type: Triple fan
    • Motor: Reverse-motor
    • Required window size: 25.5” W x 8” H
    • Cord length: 6’
    • Materials: N/A
    • Dimensions: 3.4″ x 25.2″ x 7.7″
    • Weight: 6.5 pounds
    • Warranty: 5 years


It features 3 individually controlled fans so that it delivers 40% more velocity as opposed to competitors, reaching an airflow of up to 100 CFM. Moreover, it uses original technology to guarantee quiet operation while it disperses breezy air. As the flow of air is reversible, it can intake fresh air and exhaust warm air.

Adjustable Operation

It boasts 3 variable speeds that can help you get over a heat wave. Also, it lets you install it in whatever manner you prefer as it presents controls on both sides.

Some of its high points are:

  • Adjustments – choose between a manual thermostat or the preset speeds
  • Extender – can enlarge to fit large-size windows. Moreover, it allows mounting either in a horizontal or vertical position
  • Automatic – if you’ve experienced a power blackout, it will memorize the last settings and power on again when the power is up

Of course, we cannot overlook the 5-year service contract, as it implies that, during this period, as long as you use and install the product correctly, you obtain free repairs in case anything happens to it.

PROS

  • It’s very low profile so it can be mounted in very small windows
  • The 3-fan assembly manages to move a lot of air
  • It includes a manual thermostat
  • It automatically retakes the settings after a power outage
  • The warranty period is extended

CONS

  • It reverses manually, not using a switch
  • The fans don’t work independently


VERDICT

The design is very appealing and the low-profile size makes it ideal for small windows. It has some great features to start with and blows a significant amount of air. It even reverses the blades, but this must be done manually by turning the fan around, which some people find cumbersome.



Q: How long is the electrical cord?
A: It is 6’ long, so it gives you space to mount the unit in a way that won’t affect the aesthetical aspect of the room or cause electrical flaws to appear.



Window Fan vs. Box Fan


Whenever installing an AC is not an option, fans come as the winning alternative for cooling down a home at a smaller power use and with a lower purchase price. Window-mounted fans are particularly favorites as they tend to provide better outcomes by drawing cool air from the outside and hot air from the inside. On the other hand, box fans have their own perks and make a great choice for small areas. To simplify things, here is a quick comparison of window and box fans that is intended to help you in your purchase.

  • Mounting

    As mentioned before, window fans are installed on the window sill, at the bottom part or upright, and they fit several widths, so you will be conditioned by this aspect when picking a certain model. Thankfully, most come with adjustable side panels that fit various sill sizes and even have locks to avert intruders from breaking into your home. Box fans, on the other hand, are ready to be used right away, without requiring any setup work.

  • Cooling abilities

    Box fans usually circulate more air, considering they have a direct airflow sent towards a person who will automatically feel a comfortable coolness. The window type, however, communicates with the exterior and exhausts the humid and hot air from inside while taking in cold air from the exterior. At night time, when the outside temperatures drop, they reach the peak point of their efficiency.

  • Portability

    As opposed to window fans that are fixed, box fans can be easily grabbed and moved wherever needed, so they can represent a cooling option for various areas of the house, not just one room. Place them anywhere you want, on a table, on the nightstand, or the floor, and you will enjoy a cool air draft right next to you.

  • Noise

    Because of the higher power, window-mounted fans make more noise so they might be a disturbance for sensitive people who want to keep it down when they relax or sleep. The box type is quieter so you might find it a better pick if you don’t like the rattling humming sound of spinning paddles.


Frequently Asked Questions



How do you cool a room with a window fan?
These fans are known for their multiple functions based on the reversible motor that rotates the blades both ways. Hence, they take cool air from outside on one setting and send out the warm air on the other.

Which way do you install a window fan?
Fans that take cool air from outdoors must be positioned on the shady side of the house and those that evacuate hot indoor air should be placed on the sunny side. Also, if you have multiple stories, put the inward-blowing ones on the ground floor and the outward blowing on the upper level, to encourage blowing out the rising hot air.

Can a window fan get wet?
Although the housing is sealed to prevent infiltration of rain or snow, it’s advisable not to have the fan running while it’s pouring. In case it does get wet, allow it to dry before turning it back on.

How do you clean a window fan without taking it apart?
While performing any type of cleaning, make sure you cover the motor area to avert any liquid getting inside. Always unplug it when engaging in cleaning. You can try placing the fan on the ground or you can clean it on spot. Use a spray that dissolves dirt, let it soak for a few minutes, and then rinse carefully with a hose.

Should I set my window fan to intake or exhaust?
To fully maximize the air circulation indoors, install the intake fan on the shady side of the house to ensure all the cool air will be pulled inside.

Can you put a window fan vertically?
This type can be mounted both horizontally and vertically, with only one specification: when installed vertically, make sure the extender panel is placed at the top of the fan, and not at the bottom.

Does blowing a fan out the window work?
Many people agree that sending the hot air outside is more effective than trying to bring cool air inside. Placing the fan in front of the window will evacuate the moist and warm air while allowing cooler air to come inside.

Do box fans cool a room?
Yes, placing a box fan in or near a window will help you lower the indoor temperature at a smaller cost than using an air conditioner by pulling the hot air out of the room.



Conclusion

By now, you probably are convinced that you can keep your space cool efficiently as long as you opt for one of the entries we recommend here. Chances are you need to find a model that is up for a certain task, which is why we classified our top entries based on what they do best. Check them out and see which one is the ideal purchase for your needs.

Best Overall: AirKing 9166

Small yet effective, it was bound to be our top pick seeing how it even packs a built-in safety system to amplify safety. It is reliable for use in small to medium-sized areas and doesn’t consume much energy when it runs either. It features an impact-resistant material that guarantees years of use, and it has been impartially tested and has received ETL and OSHA accreditations, so you can rest assured seeing that this is an entry viewed by many as safe and reliable.

Editor’s Choice: Lasko 2155A

A model designed by one of the most reputable names in the industry, it’s no wonder we liked it so much. It is powerful, with an impressive airflow rating, but still managing to remain compact and somewhat silent. Thanks to the folding panels, it can be mounted on most windows with ease and it even locks the window so your home’s security will not be endangered. The motor works both ways and you have 3 speeds to pick between, in any of the two directions. With a simple installation process, it will easily find its way into your home.

Best Window Fan for the Money: Holmes Twin Fan

You can alter the speed to get the results you wish, and, as it consumes only 90W tops when it runs, there’s no cause to be concerned about expenses. Combine its energy efficiency, powerful 320 CFM rating, and cheap upfront price, and it’s easy to grasp why we favor it and regard it as the value deal to opt for.

Best Window Fan for Kitchen: Bionaire BW2300

Given that the kitchen gets very hot while cooking and it’s likely to get filled with scents and flavors from food, it requires a powerful fan that can successfully send all the bad odors out and leave the air cool and pleasant. This model is up for the task as it engages 2 fans into the intake and exhaust movements. Even more, it has a thermostat that enables it to bring the temperature to the optimal level, thus ensuring you won’t ever have to deal with damp air.

Best Window Fan for Smoking: Comfort Zone CZ310R

The set of fans that move in both directions and manage to evacuate warm and moist air make it an excellent pick for a home with smokers. The added mesh that acts as a shield makes it even more efficient in improving the air quality, as it will not let further impurities get inside the house. As a result, the air in your home will feel cooler and cleaner and you will enjoy a more comfortable living environment.

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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