The 10 Best Window Fans For side opening Window (2023 reviews)

We consider a window fan for side opening window to be a worthy investment in the long run. We are here to help you choose the right one for your needs from all the best available products in market today.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Air king Window Fan For side opening Window READ REVIEW

Best For warm summer days: Buy: Bionaire Window Fan For side opening Window READ REVIEW

Best With timer: Buy: Lasko Window Fan For side opening Window READ REVIEW

Best With Thermostat: Buy: Genesis Window Fan For side opening Window READ REVIEW

Best For garage: Buy: Amazon Basics Window Fan For side opening Window READ REVIEW

Best For small room: Buy: Vornado Window Fan For side opening Window READ REVIEW

Best With Google Home setup: Buy: Aspen Window Fan For side opening Window READ REVIEW

Best For sliding Window: Buy: Holmes Window Fan For side opening Window READ REVIEW

Best With bug screen: Buy: sharper Image Window Fan For side opening Window READ REVIEW

Best For bringing In The Cool night Air: Buy: Joeyz Window Fan For side opening Window READ REVIEW

Best Overall: Air king Window Fan For side opening Window

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Air King line of fan come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. This fan is incredibly heavy meaning there is no way to install it without first putting screws in your wall. It does pull in the cool air as it's designed to do. It does an excellent job of bringing cooler air into a hot space. The unit performs as expected and is fairly quiet, considering the volume of air it is moving.

This fan is a great alternative to an attic fan. It is easy to install and moves lots of air. The all-metal construction creates both noise and vibration.

• Vibrates and could be sturdier but not bad
• Very powerful fan it really cool down the whole apartment
• Nice fan works for large house, well made
• Powerful enough to cool the entire house

Best For warm summer days: Bionaire Window Fan For side opening Window

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Not everyone likes to purchase fan for their daily purpose, but the bionaire window fan for side opening window would be an anomoly. It is great to cool down a stuffy room. It will circulate air in an entire 15x16 foot room easily. It is designed to produce a decent flow of air. The ability to exhaust air from the room as well as blowing air into the room without having to turn the machine around is nice. It is also fairly quiet and can be set for the blades to move air either in or out without physically taking the fan out of the window and turning it around.

The air exchange feature that draws in fresh air while the second fan pulls out the hot is great. It gives you a cool breeze and tell you the approximate departure it is along with a choice of speeds. It can make the air flow in-out and/or out/in.

• Great for keeping you cool on those summer nights without
• Moves air well without the loud noise
• Efficient at cooling and the exhaust features are great
• Has minimal power behind it and barely cools the room down

Best With timer: Lasko Window Fan For side opening Window

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate fan. The lasko window fan for side opening window is exactly that - it's a simple fan that hits all the right notes. It fits in windows that will not take a 20 inch box fan, moves a lot of air, and reasonably quiet on low. It's powerful and quiet enough that you don't have to raise the volume of the tv to screaming levels. It provides whole-house ventilation with an electrically reversible intake and exhaust motor. It has expandable gap fillers and perforated holes for screws to mount on the window frame. It comes with the storm guard feature, the window can be closed behind the fan quickly to keep rain water from blowing into your home.

It is easy to install, built in a satisfactory manner, works very efficiently and well, and the noise level is to be expected and preferable over that of an a/c unit. The exhaust fan helps so much and the intake fan brings in a cool breeze. It allows easy removal and cleaning, it also sturdies it up and runs even quieter.

• Works very well and is quiet
• Fits in more windows than a 20 inch box fan
• Good brand reputation

Best With Thermostat: Genesis Window Fan For side opening Window

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This fan is so loud and it's perfect for drowning out noise. It has 3 speed settings, an adjustable thermostat with led indicator lights, and can be used as intake or exhaust. It's a soft, relaxing "white noise" sound which blocks obnoxious sounds outside. There are 2 removable stand legs to allow you to use this fan as a freestanding fan on a counter, ledge, or floor. It is also very powerful which keeps the room nice and cool.

The fans have 2 independent copper motors allowing you to choose to use one of the fan heads for intake while the other is used for exhaust simultaneously. The high setting will be suitable for a small auditorium. It is great for areas with mild temperatures.

• Very simple window unit with rudimentary temperature controls
• Nice and quiet with a very comfortable stream of air
• Very powerful but quiet enough even on the highest setting

Best For garage: Amazon Basics Window Fan For side opening Window

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate fan. The amazon basics window fan for side opening window is exactly that - it's a simple fan that hits all the right notes. This fan does pack some power. It's a simple three-button remote that actually does so much. They designed it with so many it restricts airflow from the front and pushes air out the sides. It comes with two fan heads with 9 inch blades. It can be physically reversed in the window to be used as an exhaust fan. It extends to approx 32 Inches.

The circulating feature and the remote are by far the best additions and worth the extra money to get. It is perfect if you like the cool breeze coming in at night & it also can be turned around to blow out warm air from within.

• Fancy features, just a straight forward, easy to use product
• Light, powerful, and fairly quiet on low settings
• Flexible option to make use on table or install in window
• Weak air flow, fan always starts in exhaust mode

Best For small room: Vornado Window Fan For side opening Window

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Not everyone likes to purchase fan for their daily purpose, but the vornado window fan for side opening window would be an anomoly. The built-in Alexa feature is incredibly convenient. This allows installation with a small enough window opening to prevent unwanted intruders from climbing in the window. The air chamber abundantly draws fresh air from the outside in. It provides side foam to keep the hot hair on the outside from coming in. The foam blocks included to shrink the window opening to snuggly fit the fan are also sturdy, easy to install, and well made.

This fan brings fresh air in, pulls stale air out when you set it to exhaust. It will also display the room temperature, and the thermometer icon in the fan will be illuminated green. The fan itself is awesome, sleek, quiet and really moves a lot of air. It is great for cooling air in the summer.

• Very attractive design and easy to use controls
• Attractive and quiet with handy remote
• Controls undesirable noxious exhaust, cooking, smoke etc from your home or your neighbor
• There’s no issues, no weird noise, no nothing

Best With Google Home setup: Aspen Window Fan For side opening Window

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The user interface is easy to use, the app, if you choose to use it, is easy to set up and use. It is designed for double-hung windows. The app does allow you to remotely monitor temperature and to turn the fan on via the cellular network if you’re not in range of the router. The fan works well, the remote is good, and it is easy to install.

The fan isn't terribly noisy either, super quiet on low and barely much louder on High. The fan is able to be scheduled based on weather which would be more effective if accurate. This fan is able to be scheduled based on weather which would be more effective if accurate.

• Easy to clean and runs great
• Install and linking was so smooth and easy
• Noise is a widely underrated stress factor
• Good quality fan with removable, washable fan grills and blades

Best For sliding Window: Holmes Window Fan For side opening Window

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Holmes offers a variety of fan for personal choice and yet maintaining quality in all the variants. This window fan is designed to fit a window either vertically or horizontally. It comes with Bionaire brand technology, so you can live in harmony with nature for a serene home environment. The three fans are controlled with the "speed" lever and it shuts one off for each reduced level. The expanding component will let you make it fit a variety of sizes of windows with some extra spacers and an "accordion" slider.

This room has its own ac unit, as it's an add. The fan body is approximately 26inches wide and has extender panels to close off remaining open window space. They are very quiet and very effective. This fan is also very solid, it's got a great little wing to fill the right of the window opening.

• Very quiet & puts out a lot of air on "high" speed
• Low profile, quiet, but really brings in the air
• New and hot release

Best With bug screen: sharper Image Window Fan For side opening Window

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Sharper Image line of fan come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. It's designed to be put in the window horizontally. It makes a rotating sound when the fan is set to blow air into the room. The foam fillers work so-so but cutting them with a very sharp carpet knife and some white caulk works pretty well. The fan lets in a decent amount of air even when it's off depending on how windy it is outside. It will sit up against the screen.

It is built to meet U.S. voltage requirements. This should not be placed over any hot surfaces such as an oven.

• Works great blowing in and out
• Less than 1/4 inch to large for new standard window opening
• Doesn't block air when turned off
• Does not fit all windows without removing screen

Best For bringing In The Cool night Air: Joeyz Window Fan For side opening Window

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Featuring a manual reverse option, this twin blade window fan can draw cool, fresh air into your home or push hot, stale air out of the room using the exhaust function. This unit is placed in the window from the inside so you should not have to remove your outside screen. It cools down pretty quickly blowing in the cool night air. This fan moves a decent amount of air and can be mounted in any direction you'd like.

This fan does not come with any closing mechanism. The handle makes this twin fan to be more convenient for carrying between the rooms. This is a very basic window fan. This would be best utilized in a window, right next to the bed.

• Blades rattle, kind of noise once you hear it you can't stop hearing it
• Easy fit and moves sufficient air
• Just high and low,no remote and fans only blow in
• Must be removed & flipped for exhaust/intake control