Window Fans

As technology advances, our homes get smarter with each new device we add to them. Since there are hundreds of indoor cooling and heating appliances on the market, you will always have options. However, they do not always come at a reasonable price, which means that cooling your home can rack up your bills. Thankfully, there are some cheaper options which can make a big difference in saving money. The best way to save money while keeping indoor air refreshing and comfortable is installing a fan. Less costly than many other air conditioning systems, window fans help circulate cooler air during the hot summer days. Choosing the best device for your home can be a hectic process and a lot needs to be taken into consideration.

After a lot of research into the pros and cons of various devices found on the market, we picked our final 5. Take a look at the matrix below and choose the one that meets your expectations.

Top 5 Window Fans Comparison

1. AirKing 9166 2. Lasko 2155A 3. Bionaire Twin Reversible Airflow 4. Comfort Zone Twin 5. Holmes Dual Blade Twin
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General Information

Manufacturer AirKing Lasko Bionaire Comfort Zone Holmes
Model 9166 2155A BW2300 CZ310R HAWF2021
Product Dimensions (L/W/H) 26.75 x 11.25 x 26.25 inches 26 ½ x 8 ¼ x 22 inches 25.5 x 6 x 14.1 inches 23.5 x 5.8 x 12.87 inches 22.7 x 5.3 x 11.7 inches
Product Weight 36.6 lbs. 11.55 lbs. 8.8 lbs. 5.8 lbs. 6 lbs.
Product Construction Impact resistant plastic housing, powder coated steel front grill and blade Resistant plastic housing Resistant plastic housing Plastic/Metal Resistant plastic housing


Required Window Size 27″ to 38” W x 26.25″H 26.5 ” to 34.5”W by 22”H 24” to 37”W 23 ½ ” to 37”W by 22.25”H 10”W by 36”H
Blade Size 20” 16” 9” 9” 6”
Max Air Flow (CFM) 3560 2470 N/A 918 400
RPM 1600/1450/1100 1280 1280/1400/1630 N/A 1480/1110/820
AMPS 1.4/1.2/1.0 15 N/A 0.5/0.48/0.44 75
WATTS 170/145/115 90 80/60/40 N/A 34.9
Number of Speeds 3 3 3 3 2
Number of Blades 3 3 2 2 2
Control Type Rotary Switch Dial Dial Dial Dial
Type Single phase Single phase Twin fan Twin fan Twin fan
Motor 1/6 HP, 120V, 60Hz 120V, 60Hz 110-120V, 60Hz 120V, 60Hz 120V, 60Hz


Adjustable Thermostat
Remote Control
Additional Features Front-mounted rotary control Exclusive Storm Guard feature LED control panel 3 Fan Functions Adjustable extender screen
Reversible motor Built-in adjustable extender Locking Accordion Expanders
Expandable side panels Extender panels


Warranty 1-Year 1-Year 5-Year 1-Year 1-Year
Customer Support
Online Manual

Window Fan Reviews

1. AirKing 9166

If you are looking for a device that can help you reduce the temperature inside your home or office, take a look at the AirKing 9166 model. Unlike the air conditioning systems, this unit comes at an affordable price and it is very easy to use and install. It can fit any windows that are between 27” to 38” wide by 26.25” high. Also, it is very important to know that is is a 3-speed unit with a 1 phase motor with 1/6 hp. It is also worth mentioning that it is equipped with a front-mounted rotary control that helps you control the speed of the fan. It has passed the AMCA for high-velocity air circulation and its design was approved by the OSHA and ETL. The AirKing 9166 is covered by a 1-year warranty which ensures it can be returned in case of defects.

  • Durable construction
  • Easy to install and use
  • Great unit. It reduces the need for air conditioning
  • Great value for money
  • Some people find it slightly loud and annoying

The AirKing 9166 is a brilliant product at a great affordable price. It is a great device which sucks the humid air out of the room and replaces it with drier air from outside. It is more energy efficient than other products, so there is no reason to choose another model. It is also worth mentioning that is very easy to install and use. It is covered by a 1-year limited warranty and it comes at a very reasonable price. Overall it is an option worth taking into consideration.

2. Lasko 2155A

The Lasko 2155A is a device that will fit easily double hung style windows 26.5 to 34.5 inches wide and at least 22 inches high only. It is equipped with a 3-paddle structure of blades which makes it pull in cold air and expel hot air. The main benefits of using this model are that it is very effective and very easy to use and install. Plus, it is safe and versatile due to its reverse mode. Unlike other models, it comes with a Storm Guard feature which helps you close the window behind the fan when stormy weather approaches. After reviewing more than 10 similar products, we can honestly say that this is one of the best model available on the market. Aside from being extremely affordable, it is also extremely easy to install. According to several customers, it is capable of cooling down your home or office just as it was claimed by the manufacturer.

  • Quiet operation
  • High powered fan
  • Easy to clean
  • It can work as intake fan or exhaust fan
  • It does not have a thermostat
For those of whom, do not seem to have any complaints regarding the large size of a fan, the Lasko 2155A would be the perfect fit. This compact two-speed fan is really quiet when compared to regular fans. It operates at low, medium and high intensity, allowing you to adjust its speed as you want. Overall, this is a good choice for people having large rooms but limited budget.

3. Bionaire Twin Reversible Airflow

The Bionaire Twin Reversible Airflow is one of the must-have cooling systems for your home. It comes with a lot of settings and a plethora of incredible features. It is equipped with a programmable thermostat which will help you set the temperature level from 50 to 80.The thermostat is a great addition as it helps you turn the device on and off automatically. This way, it can be controlled comfortably in the night. Since it has water-resistant motors, this device should easily be installed outside the house. As compared to other similar models, this fan also has a built-in adjustable extender. The fact that it is adjustable and can fir windows from 24 to 34 inches wide is a major perk. In what regards the durability, its long-lasting plastic material places it in the first position. It has a powerful water resistant motor which will not rust or crack. All in all, it is a great product that will surely meet your expectations.

  • Durable construction
  • Great 5-year warranty
  • The remote control works great
  • It is lightweight and very easy to install
  • A bit noisy in high-speed mode
The Bionaire Twin Reversible Airflow is an efficient device that provides a lot of benefits. It comes with a lot of features, including an LCD display and control panel and a programmable digital thermostat. It has a good price and a long-lasting warranty. Overall it is an option worth taking into consideration.

4. Comfort Zone Twin

In spite of how good the others are, we still want to present you the Comfort Zone Twin fan which could be a great addition to your home. Specially designed to meet strict quality standards such as UL, ETL, CE and CSA, this model is a leader in safety and reliability. It is equipped with 9-inch turbo blades and a remote control which allows you to control the fan speed. Whether used in an office or in a spacious home, it provides a cool breeze while eliminating stale air. What we really like about this fan is the fact that it is very easy to install and use. More than that, there are three fan functions. The cool function brings in the fresh air, the exhaust function removes stale air from the room with reversible fan motors and the circulate function allows you to operate the device in opposing directions to create air circulation and room ventilation.

  • Affordable fan
  • Amazing features
  • It comes with a plastic enclosure that protects the fan from aging
  • It does not require extra assembly, so it is very easy to install
  • Loud device
  • Hard to replace its parts
As you probably know, there are so many models in the market, that it may be a bit difficult to find exactly what you need. However, we recommend you the Comfort Zone CZ310R reversible twin fan. It fits most windows and it can be expanded from 23.5 to 37 inches wide. Thanks to its remote, you will be able to control its power, function, direction and speed. Overall it is a model that will surely satisfy all your needs.

5. Holmes Dual Blade Twin

If you are looking to purchase a quality fan for your windows, but you have not decided on the model, the Holmes Dual Blade Twin may be exactly what you need. The key features of this device include a dual-blade operation, two-speed settings, manual-reverse air flow control and water-resistant motors. Due to its water-resistant motors, it is very easy to use during rainy weather. Additionally, it is very important to know that it is equipped with a side panel that blocks the window opening. It is very easy to install and can be easily used for a double purpose. It is able to either vent the air or get the air in. Like any other product, the Holmes HAWF2021 has a few downsides. Several customers claim that it is not as powerful as other similar products. Also, it is a bit noisy as compared to other products and its twin fans cannot be controlled independently.

  • Easy to install and operate
  • Adjustable screen
  • Easy to clean
  • It is energy efficient
  • Not as powerful as other units
  • A bit too noisy
The Holmes Dual Blade Twin helps you to maintain your comfort level in your home. It comes with a wide range of interesting features that will surely meet your expectations. Specially designed to fit large windows, this model is ideal for spacious rooms. Its features include an adjustable extender screen and panel which will secure it in larger windows.

6. Genesis Twin Fan

Compared to many other similar products, the Genesis Twin Fan is a quality device that has a lot of functions and settings. It uses a max cool technology and comes with a thermostat that ranges from 60 to 80 degrees. In addition to this, it is equipped with two 9″ fan heads that have their own durable Cooper motors. There are also 2 expandable side panels thanks to which the fan can easily to any window frame that measures 37 inches. It has 3-speed settings that allow you to set the fan at the desired speed level: low, medium and high. As mentioned above, it comes with a built-in thermostat, but it is very important to know that the thermostat has 5 settings of 60°F, 65°F, 70°F, 75°F, and 80°F temperature. This means that the device will automatically shut off once it has reached the optimum temperature level. Also, if you are thinking about purchasing this product, remember that the manufacturer offers a 1-year warranty from the date of original purchase.

  • It has has reversible airflow fan
  • The price is quite low
  • 3 speed settings
  • Max cool technology
  • Built-in thermostat
  • Expandable side panels
  • Short warranty
Take a look at this model and you will be surprised to discover how great it is and how good it works. It comes with a lot of impressive features and uses an advanced technology that will surely meet all your requirements.

7. Bionaire BWF0522M

After a lot of research into the pros and cons of various models, we can truly confirm that this is one of the most efficient yet affordable models available in the current market. It is a device that comes with a plethora of impressive features and all this for a very attractive price. First of all, when making a purchase you need to take into account its configuration. For example, this model is designed to meet both configurations vertical and horizontal. It comes equipped with 3 independently controlled comfort settings and multiple manual controls. It is suitable for large rooms. Also, it should be noted that as compared to standard fans, this model is powerful with 40% greater air velocity. Thanks to its technology, you can live for many years in a nice and healthy home environment. Although it lacks certain features, such as a remote control, it still is a good option to take into consideration when making a purchase.

  • It comes with 3 speed settings
  • Built-in adjustable extender
  • Reversible airflow
  • It has a manual thermostat
  • It doesn’t have a remote control
Although it is not one of the most powerful fans out there, this is a nice option to consider. It features 3-speed settings and a built-in adjustable extender that helps it offer rigid support for vertical configuration. It is 25% more compact than other similar units and has a 40% greater air velocity. All in all, it is a great value for money and an option worth taking into consideration.

8. COSTWAY Twin Fan

This twin window fan by COSTWAY is our 8th option. It is an efficient unit that provides quality and performance. It is specially designed to help you face even the most complicated weather conditions. The fan comes with two-speed settings and a manual-reverse air flow control. This is a big plus and a nice setting that allows you to adjust the fan according to your preferences. As compared to other similar units, it is portable. It may sound a bit strange, but it is quite important to consider this aspect when you make a purchase. The fan comes equipped with two removable legs, so if you want to use it as a floor fan, you can do it. In what regards the installation, things are simple. Its expandable side panels can be extended from 23-1/2” width to 37”. With these dimensions, stay calm as it will fit into your window easily. Also, we shouldn’t forget about its built-in handles thanks to which, it is more convenient for carrying.

  • It has two speed-settings
  • Manual-reverse air flow control
  • Removable legs
  • Easy installation

The fan by COSTWAY is one of the most powerful units on the market. Aside from a compact design, it comes with a lot of useful settings. It is very easy to use and thanks to its built-in handles, it is also extremely easy to carry. So, if you are looking to purchase a lightweight unit for your home to help you endure through all weather conditions, this can be a great investment.

What’s Behind Our Ratings?

Best window fans
With so many types and models on the market, it may be quite complicated to find exactly what you need. When making a purchase, there are a few factors you need to take into consideration. Therefore, in order to find out what the best fan has, keep on reading the following lines.

  • Remote control

    If you are on the hunt for a special model, make sure you choose one that comes with a remote control. The remote controls have revolutionized the way people do things. By using a remote control, you won’t have to wake up in the morning to change a setting. In simple terms, a remote control will add convenience and will ease your work.

  • Speed settings

    One of the most important things to consider when making a purchase is the speed of the device. While some models have 3-speed settings, there are also models with 2-speed settings like the Holmes Dual Blade Twin HAWF2021. However, although it has 2-speed settings, it still is one of the best models available in the current market. The speed settings give you the power to control how much air you want to draw in or suck out.

  • Number of blades

    It is very important to understand that a fan which comes with twin or triple blades is able to increase the rate of airflow in your house. While single blade models are not able to suck out and draw in air at the same time, the ones with twin or triple blades can easily do this task. They are able to draw in and suck the air out at the same time.

  • Noise

    If the white noise bothers you, make sure you opt for a device that does not create noise while in operation. The normal level of a device should not exceed 60 dB.

  • Extenders

    Whether you forgot the measures of your window or you don’t carry much about this aspect, get a fan with extenders. These types of fans are made to fit any window, no matter the measurements.

  • Safety features

    If you are looking to purchase one, make sure you opt for one with safety features which pose no risk to pets and kids. It is also worth mentioning that most models have the blades enclosed behind a safety grate or grill.

Know Before You Buy

Window fan
As mentioned above we spent more than 35 hours researching and reviewing the top selections for this matrix. They are an energy-efficient and cost-efficient alternative to expensive air conditioning systems, not to mention they are much easier to operate and install. A quality model is capable of improving circulation and cool your home, helping you save on energy costs. But, before making a purchase there are a few things you need to know.

  • Using the right fan

    If you are thinking about purchasing a cooling system, take into consideration a few aspects. First of all, make sure you can install a fan in your home. While some houses can get great benefits from these devices, others might get the opposite effects. However, if you have problems with the outside temperature in your area, you can definitely benefit from a fan.

  • The fan’s size

    One of the most important things to consider when making a purchase is the fan’s size. Since they are fitted on the windows, it is very important to buy one that will fit best. These systems come in various different sizes, that finding the right model for your window will not be very complicated.
    However, the best way to find the right model for your home is by measuring your windows. This way, you will know exactly which fan will fit. As mentioned above, there are extenders which can help you secure the device in place if it is smaller than normal.

  • How powerful does it need to be?

    According to several specialists, a window fan should be powerful enough to draw in cool air and suck out warm air. In order to know exactly how powerful a window can be, take a look at its CFM rating. Its cubic feet per minute will tell you how much air it can move. More than that, it is important to understand that the volume of air the device moves is strongly related to the size of the living space. It needs to be powerful enough to cool you down without bowling you over.

  • Easy to use controls

    As you have probably noticed, the most advanced models are equipped with various convenience features, including remote controls, timers and thermostat. Although they are nice and easy to use, make sure the other controls are also easy to reach and use. In simple terms, if you are looking to install a fan, make sure you choose a model with easy to use and operate controls. It’s recommended to avoid the fans with too many bells and whistles though.

Frequently Asked Questions

1How do I clean a window fan?
Before cleaning the electrical parts, the device should be disconnected. The parts must be cleaned with water and a cleaning solution and dried completely before reconnecting it to a power source.

2Does the motor of a window fan needs to be lubricated?
The motor os any fan is permanently lubricated, so it doesn’t need to be oiled.

3 How long does it take to cool down my house?
It depends on several factors, including the size of your home, amount of windows, ceiling height and more others.

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