Top 6 Best Window Fans in 2021

Window fans are affordable, very easy to mount and use, and can be used on almost any type of window.

These air circulating devices can be used to remove stale hot air from inside and for the intake of cool and fresh air from outside.

Fans for the window are much cheaper to buy, install, and use than window air conditioners and they are less bulky and more portable than them too.

Best Window Fan

Window fans are an excellent option if you want to let fresh and cool air in your room, and remove the stuffy air or cooking fumes or smoke from inside.

Most window fans come with adjustable screens so they can fit in windows of different sizes and types.

Plus, most don’t require any complicated installations and can easily be moved or removed when necessary.

The good quality window fans have reversible fans, adjustable speeds, built-in thermostats, and can work as intake fans and exhaust window fans.

We have picked the top best window fans for 2021 for you, so hopefully, we will help you decide on the unit which will serve you best.

Genesis Twin Window Fan with 9 Inch Blades

The Genesis Twin Window Fan is the best window fan for 2021, given its two durable copper motors, its variable speed settings, and the reasonable price tag of the unit.

The inexpensive fan has a unique reversible airflow fan feature, which allows for it to work as an air intake unit, and an exhaust at the same time.

The size of this excellent window fan is 24 x 12 x 4 inches, and it comes with expandable side panels, so you can install it on a window with any width of up to 37 inches and seal it from the sides if necessary with these panels which can reach to up to 6.5 inches on either side of the fan.

Plus, it has removable legs, so you can easily install it as a freestanding unit on your window or use the legs to lift it up to reach the window opening.

The fan has a Max cool technology and has a built-in thermostat, which can be set to a temperature range of 60 to 80 degrees.

Its two copper motors are durable, and each one powers one of the two 9-inch fan blades, which work together for letting a powerful and fresh airflow enter your kitchen, bedroom, or living room while allowing the hot or smelly air from cooking, the smoke or other fumes and smells out.

Its fan speeds can be set to one of the three available speed settings – from low to medium and high. The speeds and temperatures can be set separately for each of the two fans of the unit easily via the controls on the front of the unit. It has LED indicators that will display the temperature and the speed in real-time.

The exhaust window fan is easy to install and has a built-in handle, which makes it easy to move around the house too.

One of the best window fans weighs only 8.4 lbs. and is ETL approved for safety and for energy saving.

The best fan for window use is a compact, inexpensive to buy and use fan which will save you money for buying and installing an air conditioner, and it is easy to install and uninstall, so you can use it seasonally or move it from one room to another, and even take it with you when camping.

Holmes Dual 8″ Blade Twin Window Fan



The Holmes Dual 8-inch Blade Twin Window Fan is another reasonably priced option if you are looking for an easy to set up and inexpensive to use solution to allow fresh and cool air in your home and remove the stuffy and hot air from it.

The two 8.5-inch blades of the window fans with exhaust can be adjusted separately, and one can work as in exhaust for the stale air, while the other lets the fresh air in and circulates it throughout the room.

The dual window fan has an integrated thermostat with one-touch controls for each fan so that you can set the desired temperature in the room.

The two fans are powered by separate motors, which can be set to reverse the direction of the fans, and also to adjust the speed from 1 to 2 with a push of a button.

The size of the unit is 13.3 x 25.5 x 6 inches, and it comes with adjustable side panels, which can be extended up to a width of 37 inches.

It is designed to work with most sliders, casement, or hung windows, which are up to 37 inches wide.

The motors are water-resistant and safe to use even in rainy conditions.

The Holmes Electronically Reversible Dual Window Fan is very easy to install without the need for drilling or for making permanent changes to the interior of your home and to the window frames.

The window fan best by Holmes is portable too, so you can easily set it up in different rooms whenever you need to. The weight of the window fan is 7.5 lbs. which makes it easy to move around or store away when not in use.

The window fan is offered at a price lower than $40 and backed by a 3-year warranty by the manufacturer.

You can also buy one of the best fans for windows for less money with manual controls, and in a variant with a Quiet Set or with a TurboForce added freestanding fans.

Air King 9155 Window Fan, 16-Inch, White


The Air King 9155 16-inch best window fan can fit windows, which are 26.5 to 34.5 inches in width and 22 inches in height.

It has a powerful 1/6 HP split capacitor motor with three different speed options.

The unit by Air King is made of durable and weather-resistant styrene. The 16-inch blade is made of ABS plastic, and it is protected by a metal grille at the front to keep you, your children and pets safe from getting in contact with the powerful blade.

The fan comes with a 7-foot SJY 3-conductor power cord and is tested as compliant with OSHA and ETL safety requirements. The unit is also compliant with AMCA standards and is tested to operate at a maximum noise level of 64 decibels so you can use it in your bedroom or any other room without being disturbed by a loud noise.

It has a front mount rotary switch with three speed settings, for each direction – low medium and high.

The powerful window fan can be set to speed rates of 1360, 1700, or 2470 CFM, and can be used as a whole house fan when combined with other fans windows or standalone fans.

One of the best fans for window installing is easy to set up, and thanks to the added Storm Guard system on the back, you can easily close the window behind it whenever you need to without having to deinstall or move the fan.

The size of the nifty air cooling and air exhaust device is 26.5 x 8.25 x 22 inches, and it weighs 6.17 lbs.

Holmes Dual 8″ Blade Twin Window Fan


The Holmes Dual 8-inch Blade Window Fan with manual controls is another affordable alternative to a bulkier and much more expensive AC window unit.

In fact, this dual fan will use about 60% less energy than a standard fan too.

One of the best window fans will easily fit in a slider, or double-hung window and can be used to let the fresh and cool air inside, and remove stale and hot air from the room simultaneously.

The expandable side panels can be used to mount and seal the fan even on wider windows.

Its two fans can be set to work in either direction and in one of the three available speeds separately and simultaneously via the manual rotary dials and controls on the front.

With this dual fan, you will ensure that the air in the room is cool and fresh, which makes it perfect for use in kitchens where there is no other exhaust, or in bedrooms, living rooms and other premises.

It is an inexpensive and easy to install and use window fan, which is safe to use even when it is raining.

The Holmes Dual 9-inch Blade Window Fan comes with a 3-year warranty by the manufacturer.

Bionaire Window Fan with Remote Control, White

The Bionaire Window Fan will help clear the air in your home and move it around during all seasons.

The unit is powerful and easy to install in vertical slider or double-hung windows, which are 24.25 inches to 37 inches wide and 13 inches high and more.

It has an easy to see and use front control panel with a LED screen so that you can adjust the direction of the airflow of each of the fans as well as the speed and the temperature levels.

The window fan comes with a nifty remote control, so you can adjust these settings without having to get up too.

The temperature can be set from 60 to 80 degrees, and the unit will switch the fans on and off in order to maintain the desired temperature automatically.

It comes with two 8.5 inch blade fans and has extenders on each size to make its mounting and proper fit to the window as easy as possible.

It is an affordable and easy to use fan which can be used as an exhaust or for fresh air intake, or for both needs simultaneously.

It works quietly and is portable, and its two motors are water-resistant and safe.

The Bionaire Window Fan is sold with a 5-year warranty at an excellent price.

Lasko 16″ Electrically Reversible Window Fan

The 16-inch window fan by Lasko is electrically reversible, allowing for air intake or air exhaust depending on your need.

The powerful window fan is designed to fit windows, which are 26.5 to 34.5 inches in width and with a height of 22 inches or higher. It will work for all types of windows – double-hung, sliding, or casement.

The light fan is easy to lift and mount, and it comes with a Storm Guard on the backside, to allow you to close the window even without having to move or remove the unit, when there is a storm, or when you need to secure your home.

At the same time, it has a low profile, so it will not take up your valuable room space or get in the way once installed.

The fan has three speeds for intake as well as for air exhaust, and you can easily reverse it and set the speed via the rotary dial on its front.

It is an affordable alternative to a kitchen hood or an air purifier for a room where there are other fumes or cigarette smoke.

Overall, the Lasko 16-inch window fan is among the best you can buy in 2021.

Percy Mack

Last update on 2021-04-12 at 03:13 / Affiliate links / Images from Amazon Product Advertising API

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