Air pollution is one of the most prevalent issues of today, accounting for premature deaths globally. In 2016, the World Health Organisation attributed 3.8 million deaths to household air pollution, which accounts for 7.7% of global mortality. Never has there been a more necessary time to invest in a window fan.

Household pollutants are caused by utilizing solid fuels used for the likes of cooking and cleaning. These can impact the health of you and your family and should not be overlooked. In contrast to regular fans, which circulate preexisting air in the environment, window fans are the best for bringing in fresh air from the outside into your room and home. The best window fans can not only cool a large room or your home, but they also remove odors and stale hot air.

View the Best Window Fan, Below.

• Bionaire Twin Window Fan
• Air King 9166F Whole House Window Fan
• HOLMES Dual Blade Twin Window Fan
• Lasko Electrically Reversible Window Fan
• Comfort Zone CZ310R Reversible Twin Window Fan
• Genesis Avalon Twin Window Fan
• Comfort Zone CZ319WT Twin Window Fan
• Bionaire BWF0502M-WM Thin Window Fan
• Optimus F-5280 Window Fan
• BOVADO USA Twin Window Cooling Fan
• Air King 9155 Window Fan
• Lasko 2137 Twin Window Fan

1. Bionaire Twin Window Fan

Look no further for the best modern unit, equipped with LED digital display and a sleek, easy to navigate, electronic control with LCD screen digital display.  This unit is super easy to use, and its modern features include a programmable thermostat, which turns the fan on and off so that you can maintain an optimal comfort level that is right for you.

This unit exchanges cool air from outside and exhausts hot air making it a great reversible air flow type.  With three speeds to choose from, you are left with a cool, comfortable oasis for any room or home. Practically, the unit measures at 13 inches overall with a 1/2 inch fan. It is suitable for double-hung and vertical slider with a width of 24.25 inches.

This window fan comes with the key features you should look for in a unit for an affordable price. We love the programmable thermostat for effortless control and maximum comfort.

2. Air King 9166F Whole House Window Fan

The Air-King unit is a larger window fan suitable for circulating air in any residential or work setting. Unlike classic fans, this unit comes with a useful function. While traditional units are held in place by closing the window down onto the fan, the Air-King Storm Guard enables the window to be closed behind the fan to protect you and your home from the elements. The exterior of this unit is made from impact-resistant plastic, while the front grill and blade are comprised of powder-coated steel.

This unit features a high quality, powerful motor, rated at 120 volts, 1/6 horsepower and has 3 speed settings of high, medium, and low. The unit is compliant with OSHA and ETL and is tested in accordance with AMCA standard 230-99. It comes with a handy 7-foot long power cord and has a 3 conductor. This unit also comes with a 1-year limited warranty to protect against defects.  This fan fits window openings between 27 and 38 inches wide and 26.25 inches tall while the unit itself measures 26.75 x 11.25 x 26.25 inches.

Thought has gone into the practicality of this model, and it has learned from the mistakes of traditional fans regarding the ability to close the window.

3. HOLMES Dual Blade Twin Window Fan

The Holmes unit is an excellent choice for those on a budget. This affordable unit is designed to fit into most double-hung and slider windows with minimum openings of 25 inches wide and a height of 12 inches. Extender panels also extend to a width of 25 inches. Despite the price, this unit does not compromise. It has 3 fan speeds and a thermostat that operates quietly while performing an excellent job of purifying and freshening up your indoor room with cool air.

The Holmes unit is also a durable choice that can withstand all weather types due to its water-resistant motors. Electrically reversible air flow also draws in the fresh air and extracts the sticky and polluted air every home or business owner seeks to avoid. All you need is 120 AC outlet to plug this unit into and start feeling the benefits.  In addition to being easy to install, troubleshooting is also easy with manual switches to adjust the direction of airflow, while the unit's thermostat helps you maintain an ideal comfort level.

This unit is versatile, it can be applied to most windows and is easy to maintain and control. Great features aren't abundant with the price tag, rather they are just switched to manual operation rather than automatic.

4. Lasko Electrically Reversible Window Fan

This compact 16-inch unit is a must-have for those seeking a lightweight and easy to mount window fan. An excellent choice for a smaller room, this unit fits windows of 26.5 to 34.5 inches wide and 22 inches high. Like more modern window fans, this unit features a storm guard that enables you to close windows easily without removing the fan. This value for money unit brings in fresh air and the exhaust pushes out stale air with its electrically reversible function.

We love this super lightweight unit that makes it perfect for a variety of rooms and settings.

5. Comfort Zone CZ310R Reversible Twin Window Fan

Choose from 3 speeds with this 3 in 1 twin Comfort Zone unit. Featuring a low, medium, and high airspeed, you are able to quickly and effectively circulate fresh cool air into your room.  Dual fan features circulate air in opposite directions to improve the distribution of cool air. Measuring at 25 x 4.9 x 13.9 inches, this unit is relatively compact, meaning a comfortable indoor environment without even noticing its there. A useful remote control enables you to turn the unit on and off at the touch of a button no matter where you are.  A super useful feature of this unit is its protective screen, which helps keeps bugs out, especially handy in summer months.

This fan stands out from the rest due to its innovative removable protective screen. You will be troubled no more by neither hot sticky nights or waking up with mosquito bites.

6. Genesis Avalon Twin Window Fan

The Genesis window fan is the best in terms of aesthetic, a sleek all-white unit with high velocity, and 3 speed settings high medium and low to select comfort for your room with ease. Maximum cool technology is validated with a thermostat with ranges of 60 to 80 degrees, displayed in LED lights that alert you of any changes in your environment.

This unit is innovative, durable copper motors endure all weather conditions and situations. Practically the model has expandable side panels that expand to 6.5 inches on either side in order for the unit to easily fit onto windows of all sizes. While reversible airflow ensures all pollutants and hot air is safely extracted from the indoor environment.  This unit measures 24 x 12 x 4 inches.

We really like the versatility of this unit, it can be easily installed to most windows to increase airflow.

7. Comfort Zone CZ319WT Twin Window Fan

This versatile 9-inch twin unit with manual reversible airflow control features a 2-speed dial control. You can choose between low and high air output controls to create a strong cooling effect or a gentle breeze. Auto-locking expanders secure the fan to windows of between 22-1/2 and 33 inches wide.  The reversible airflow design pushes hot stale air into the outdoor environment leaving you with the perfect indoor climate.  While a protective cover prevents any of these from re-entering your household or workplace, and sturdy feet adds the option of the unit being freestanding.

No one wants debris or bugs in their home, the protective cover of this unit is preventative against these entering or re-entering.

8. Bionaire BWF0502M-WM Thin Window Fan

Get great relief with the Bionaire unit. The sleek, thin design of this unit, featuring three independently controllable fans circulates air quickly and effectively to provide efficient cooling. With 3 speed settings, you can personalize the output of the unit or the fully reversible airflow. Held tightly in place by dual locking extender screens.

This manual unit weighs a light 6.5 pounds and measures 27 x 6.6 x 9.2 inches. While an inbuilt thermostat will remember previous temperatures even after the unit is turned off. Although buyers should be aware that unplugging the unit will cause it to reset and no longer remember previous readings.

This window fan stands out with its thin triple fan design. We love that each fan can be independently controlled for your personal preference.

9. Optimus F-5280 Window Fan

Get up and running with one of the best easy to install fans. This unit comes fully assembled and ready to use. Fret not if you aren't equipped with a toolbox, this unit requires no tools for installation.  A speedy setup means the quicker your home is cleaner and perfectly cooled, it is a win-win.

This unit weighs 5.7 pounds and measures 22.6 x 5.3 x 11.8 inches. It is a manual fan, so you can also ensure in set up that the fan is programmed in reversible air mode to extract all the things you don't want in the comfort of your home.

We like that this fan has the versatility of being on the window or being freestanding with the option of two speeds.

10. BOVADO USA Twin Window Cooling Fan

This is one of the best fans with 3 useful speeds. Its twin fans hold different functions, while one fan works to bring in the cold fresh air; the others act as an exhaust function to remove hot, stuffy air inside the room.

Designed for double-hung and slider windows, this unit comes with locking extenders so that it can fit even larger windows of frames up to 37 inches. This feature also ensures a snug, secure fit. While this window fan comes with a convenient remote control to save you the hassle of getting up to change the settings. It is also electronically reversible, unlike other fans, which are manual.

This unit comes with all the staple features and the added bonus of being electronically controlled.

11. Air King 9155 Window Fan

This affordable air king is a single fan, made from quality steel and high impact styrene housing with an ABS plastic blade and is permanently lubricated. It comes with 3 speed settings and fits windows of 24 1/2 - 34 1/2 inches long by 22 inches high. You need not worry about how safe this unit is as it is ETL and OSHA compliant and tested in accordance with AMCA standard 230.99.

This fan emits a lower noise level of 64 dB, so it is great for work environments.

12. Lasko 2137 Twin Window Fan

The Lasko twin fan comes in white or cream color and is made from durable plastic. It is super slim so that you keep your window view but get cool air inside for your whole house or room at the same time. It fits most windows from 22 inches to 32 inches and is built with minimum noise and efficiency in mind.

Simply unpackage and install to have cool air in no time, with this fully assembled unit. Making it one of the best window fans in this respect. Once you are up and running, you have 2 speeds to choose from.

We love how easy to set up this unit is just unpack and install.

Window Fan Buyer’s Guide

The best window fans can keep you cool for a fraction of the price of an air conditioner. In addition, they address the huge problem of household pollutants, making your room not only more comfortable but safer too. However, there are some key differences you should be aware of prior to purchasing your window fan. You can review these easily by looking at the unit specifications available on amazon com. Window fans don’t mechanically cool air in the same way that air conditioners physically remove heat and moisture.

Instead, what they do is circulate air and those with a reversible air setting extract air from your room or home and replace it with fresh outdoor air. Some of the best window fans come with this function, so consider this feature before investing. Some key things to consider before purchasing the best window fan for you include checking the dimensions of the window you are working with to ensure a snug, secure fit, and so your unit doesn’t break is a given.

Importantly, you should decide which type of fan is best suited to you. We have outlined above both intake and exhaust window fans. Intake fans bring cool air into your room while exhausts push out stale indoor air from the room. However, most fans do come with the option of reversibility. Although sometimes you may have to change the settings, in manual fans, this may mean removing the fan altogether from the window, while electronic reversibility provides a much quicker solution.

Lastly, we suggest investing a quality window fan. The best window fans are made from durable materials that will last you a long time. Look out for water-resistant window fans, especially if you are accustomed to a damper climate.

Expert Tip

A hallmark of the best window fan is not only its loaded features but if the unit is energy-efficient, it can be the best option to save money in the long term, even if the price tag is initially a little higher.

Did you know?

Throughout the day, humidity levels within your house change. An efficient tip for staying cool is pulling cool air in overnight by facing your fan out.