Best Vertical Window Fan

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Hot temperatures and bad odor can make your home unbearable. That is why you should buy a reversible window fan that can cool, circulate, and exhaust all the stale humid in your house. However, not all fans can bring in the cool breeze as well as exhaust the stale air out. 

It is necessary to consider the quality, ability to adjust settings, durability, affordability, and the ability of the fan to fit well on your window before paying for it. A good fan should also not expose you to health problems because of using it or keep your house unbearable due to too much noise.

To help you spend your money on a fan that will not frustrate you, here are top ten window fans you can choose from.

Best Vertical Window Fan

1. Bionaire Window Fan



Due to its high performance as well as effectiveness, this fan is among the top best-known window fans. Its ability to cool the air inside your house, as well as make it fresh makes it a perfect choice for most buyers. The fan comes with a programmable thermostat which enables the user to turn the fan on or off. 

Users love the fact that the fan can exhaust stale air and bring in fresh breeze simultaneously through the available independent dual fans. Simply put, it’s an exhaust as well as a fan. How to use it depends on your current needs, and you can choose to use a low, medium, or high speed. 

 As you set the speed, the LED displays the settings, thus making it possible to set the right temperature with ease. On the other hand, you don’t have to worry if rainwater accidentally reaches the fan since it is resistant to water. 


  • Enhances 3-speed settings
  • Displays current temperature settings
  • Convenient remote control
  • Allows adjustability via controls
  • Dual modes: exhaust or fan
  • Has a water-resistant motor
  • Adjustable screen extender


  • Noisy to some users


2. Holmes Window Fan


The Holmes window fan is durable and is suitable for your 500 sq. ft room since it fans a wide section effectively. The fan comes with screen extenders that you can adjust. So, you can secure the fan on larger windows since you can extend it without trouble to ensure it fits well.

It is easy to install the fan, thus no need spending extra money hiring someone to do the installation.

Thanks to its 6” blades; they are quiet, hence no intolerable noise when operating the fan. Again, these blades are powerful hence making the fan work well to provide cool air. 

In addition, you don’t have to worry about water spilling or rain water getting into contact with the fan since water doesn’t disable it.

Since the fan has no remote, you will have to move to where it is to manually reverse the motors.


  • The motor is resistant to water
  • Expandable screen
  • Features dual-speed settings
  • Long-lasting blades
  • 60% less energy consumption
  • Good for big rooms
  • Affordable


  • Doesn’t display temperature settings
  • Manual thermostat setting


3. Holmes Dual Blade Twin Window Fan


The Holmes Dual blade allows for exchange or intake of air as well as exhaust since it has motors that are electronically reversible.  To start operating the fan, you need to connect its power code to a power outlet of 120 AC. 

The fan comes with a thermostat to enable you to set and maintain favorable temperatures manually.

You don’t have to deal with uncomfortable noise since the fan is ideally quiet.  Whether you are looking for exhaust or just a fan for a luxurious atmosphere, you got it all when you buy this fan.  

In case you are using a slider window; it is crucial you have the fan sitting vertically so that the left side of your fan is on the bottom. The extender should be on the top side of your window. In instances where the air is not blowing in correctly; you should adjust the flow of air to intake. 

The directional switch enables you to make the adjustment of the settings effectively. 


  • Adjustable screen extender
  • Reversible electrical independent motors
  • Trio-speed settings
  • Comfy thermostat controls
  • Motors are resistant to rainwater
  • Blades enhances a dual operation
  • Airflow versatility


  • No LCD temperature display

4. BOVADO USA Twin Window Cooling Fan



The BOVADO USA features dual fans that bring in cool air into your house. It also has an exhaust which removes the hot air from your room.

This fan weighs 6.75 pounds and is good for homes with a gliding, sliding or double hung window that has a frame measuring 37”. The minimum window frame size that this fan can fit well is 23.5”. 

The BOVADO USA comes with a remote control that users use to switch the fan on or off as well as adjust temperature settings. Though the fan has no filters; it has a fabric covering on the back of the fan that keeps the mosquitoes and other flies off the fan. When the fan is off, the covering keeps the humid and hot air out of the house.

The fan is also noisy and may not be suitable to use in your bedroom. The other drawback is that it is not waterproof so, you will need to keep it away from the window when it is raining. 


  • Locking window extenders
  • 3-fan functionalities and speed controls
  • Electrically reversible fan
  • Fabric covering keeps bugs off and is removable
  • Suitable for slide windows and dual hung


  • Not waterproof
  • Noisy 

5. Portable Twin 9″ Reversible



Portable Twin comes with two covers; one on the front and the other on the back of the fan. When the fan is not in use, the front covering keeps out the hot air. The other covering which is usually attached on the back keeps off the pests when you are not using the fan.

The fan comes with a remote control which users use when changing the settings of the fun or when turning it on or off, thus making it possible to operate it from a far distance.

It is easy to move the fan to any place since it is portable. There are two snip-on-feet to give the fan stability when it is placed on the floor or the counter. The good thing with this device is that it is ETL listed, thus safe for your family to use. 

The fun is suitable for houses with windows which have a width ranging between 23½” to 37”, and a height of 12”. 

With its three speed options, you can choose to use low, medium or high-speed setting. You can use Portable Twin to exhaust, cool or circulate the air in the house.

Nevertheless, you should not spill water on this fan or leave it outside when it is raining since water will tamper with it. 


  • Removable covers
  • Allows trio modes of operation
  • Users can clean the blades and fan
  • Motors independently controlled


  • Not ideal for large rooms
  • Not resistant to water

6. Genesis twin window fan



The fan has a window fan with a trio speed settings. That is high, low, and medium. The LED lights feature makes it possible for you to view the temperature settings. The fan comes with an inbuilt thermostat that ranges between 60° to 80°.

Though the fun produces much noise which may be unbearable for most people, it has the ability to operate as an exhaust while at the same time it is taking-in fresh air from outside your house. 

You can expand both sides of the window panels by up to 6.5” inches more. Genesis twin fan has two motors that come with double 9-inches fan heads.  Each of these fan heads has a copper motor. Due to its copper motors; the fan lasts long and can withstand any weather condition.

However, the fan allows for manual operation by users, which may not be a good choice for most people.


  • It’s portable
  • Lightweight
  • Thermostat adjustability
  • Side panels are expandable
  • Has LED light indicators
  • Three-speed options
  • Features independent motor control


  • Considerably noisy when on high operation
  • Allows manual operation

7. Lasko 2155A 16″ Electrically Reversible Fan



It doesn’t matter where you install this fan because its three powerful paddles of blades make it possible to effectively exhaust hot, humid air or bring in the fresh breeze throughout your entire house. Since the Lasko 2155A has expandable side panels; it can fit on a window that has a width ranging between 26.5-inches to 34.5-inches, and a height of 22 inches or more.

When buying the fan, it is usually assembled so that you will install it on your window without needing any professional assistance from a technician. To enhance maximum security; the fan has a patented fused safety plug.

Lasko 2155A features a storm guard, which makes it possible for you to close the window behind the fan to protect it when you are not in the house or during the storms.  The fan’s motors are electronically reversible.

Since the fan is listed by the ETL, it is safe to use in your house while your health remains intact.

Because the fan is made of plastic, most buyers complain that it does not last for many years. Due to that drawback, users suggest that it should be way cheaper than it is valued.  


    • Flexible window panels
    • Easy to install
    • Optimum air movement
    •  Durable grills
    • Suitable for spacious places


  • Three-speed setting 



  • Considerably  noisy



8. Optimus PTROPSF7345BK


Due to its white color, Optimus PTROPSF7345BK can blend well with a house-wall of any color. For efficiency in air delivery, this fan comes with a three-speed motor. The motor is resistant to water so it can be left in the rain. 

The slide screens of the fan are adjustable as well as lockable. It has a 110V cord that is 6 ft long. You don’t have to secure Optimus PTROPSF7345BK on a window since its feet gives it stability to stand freely.  

To protect the children’s fingers in case they think of touching the fan while it’s operating; the fan comes with a safety grill. One drawback of this fan is that it does not come with a remote control so, you have to manually operate it, and it is not much powerful as compared to other brands. The other thing is that due to its design, it is not easy to clean the interiors of the fan.


  • Rainwater resistant motor
  • Display temperatures on LED
  • Thermostat automatic control
  • Slide screens are adjustable and inbuilt



  • Not much powerful

9. Lasko Twin Electric Reversible Fan



Lasko Twin electric fan fits well on windows with a width of 25-inches to 35-inches, and a height of 12-inches. It fans quietly, thus suitable for use in the bedroom while you sleep. Since it features an E-Z click expander, you can expand it safely and customize it according to your window size. 

With a window of 25” to 35” wide and a height of about 12”, you can buy this fan as it will fit well. The fan is ETL listed, thus using it won’t result in health problems as it is safe to use.

You won’t have to worry about unbearable noise when using this fan since its two-speed settings are quiet when in operation. It is not necessary to fix the fan on the window as it has two optional feet that makes it stable while it stands on the floor or the desk. 

However, the fan is not resistant to rainwater so, you must ensure that rainwater doesn’t reach it and water does not spill on it. Some customers have complained about having to remove the fan so as to close the window, which may be a tedious thing to do each day.


  • Thermostat allows adjustability
  • Removable snap-on stands
  • Separately controlled motors
  • Long-lasting
  • Quiet fans
  • Two modes of operations available


  • Not resistant to water

10. HowPlumb Dual Blade 9-Inch Twin Window Fan



A removable covering keeps off the bugs while at the same time; it is keeping out the hot air. By manually rotating the fan; it brings the fresh air inside the house and exhausts the stale air. There is no disturbance in the house while the fan is operating as the 2-speed settings are quiet. 

The fan is listed by the ETL, thus no need worrying about health challenges attributed to its use. With its two removable feet; the fan can be left to stand on the floor or the desk. Moving this fan is easy as it comes with an inbuilt handle. 

Since the fans’ accordion expanders auto-locks; it is possible to adjust the window to fit a window that measures 22½-inches to 33-inches. The downside of this fan is that you will manually switch it on as it has no remote to control it. The other drawback is that you must remove the covering when using the fan as is not safe to turn it on while the covering is in place.


  • Quite while in operation
  • Detachable stands 
  • Lightweight
  • Fabric cover keeps pests at bay
  • Dual control of speed
  • ETL/US makes it safe to use


  • Not automatically reversible


Finding the right fan for your home or office is definitely an uphill task. We do not want you to go through all the trouble of deciding on the right one, and (maybe) end up with the wrong thing.

It’s for that reason we decided to have these reviews so that you choose the best reversible window fan out of our top ten selections. 

Certainly, this helps save you time. You can now choose the right fan for your house without breaking your pocket depending on your cooling needs. 

No need to worry anymore about summer; henceforth, you are well informed.