Best Dual/Twin Window Fan

Dual window fans can be lifesavers during the hot summer months. You can use them to draw in cooler outside air or push stale air out of a room. Many even use them to help ventilate rooms when painting indoors. Since they are so useful, it’s no surprise that there are plenty of them on the market. In this article, we’ll take a look at the 10 best dual window fans on the market and the pros and cons of each one. In general, we’ll be looking for units that are quiet, have a high output, are energy-efficient, and durable.

Best Twin Window Fan

1. Holmes Dual 8″ Blade Twin Window Fan with LED One Touch Thermostat Control

The Holmes Dual 8″ Blade Twin Fan is a quality fan at a good price. In fact, some of the features that it boasts aren’t common across dual fan models. The first feature that makes this fan stand out is the ability to run each fan independently. For example, if it isn’t that hot, but you still want to bring some air into the room, you can use just one fan. It could be that it’s a warm summer day, and you need air coming in, but you also need to vent out fumes from a painting project. 

One fan can be set to draw the outside air while the other is pulling the inside air out. It also comes with a remote control and an internal temperature gauge that can start and stop the fan when the room’s temperature gets to a predetermined point.

The only downside to this model is that it can be a little noisy and may be irritating if you plan on sleeping near it. Likewise, it has a few odd design choices on its outer shell that can hinder it from fitting in spaces that have a screen.


  • Cost-effective
  • Can draw in air and ventilate air out at the same time.
  • It has both manual and automatic operation modes.
  • The internal thermostat can detect when the fan needs to run and will automatically turn on and off.
  • Fits most windows.
  • Water-resistant parts.


  • May not fit into some screened-in windows.
  • It is somewhat noisy.

2. Holmes Window Fan with Twin 6-Inch Reversible Airflow Blades

The Holmes window fan with twin 6-inch blades is one of the better models on the market, depending on what you need. This fan is great for cooling a room when the temperature outside is in the low 80’s (Fahrenheit) and is also great for using as a ventilation tool. It also includes “extenders,” which you can use to fill in any gaps. More of these can even be purchased separately if needed. The manual reverse airflow controls allow you to flip the unit around and ventilate with it while still having controls that you can reach.

The unit is generally quiet, but on the highest setting it can be somewhat hard to hear over. It’s not deafeningly loud compared to other fans though. It should be kept in mind that this isn’t a high powered fan, and it won’t be able to completely cool a room without some assistance on extremely hot days. Some owners have reported quality control issues with their units, but this seems to be extremely uncommon.


  • Water-resistant.
  • Two-speed settings, and a manual reverse airflow control panel.
  • Can cool up to 500 square feet.
  • Includes extenders to insure that the unit fits in a wide variety of spaces.
  • Has oscillating fan action.


  • Can be somewhat noisy on the highest settings.
  • May not be effective during extremely hot conditions.
  • Some reports of spotty quality control issues.

3. BOVADO USA Twin Window Cooling Fan with Remote Control

The Bovado USA twin window cooling fan has a lot going for it. It includes some useful features like a bug screen to prevent any nasty little critters from getting inside, while a fabric cover prevents debris and dust from being swept into the room. The fans can act independently and can be switched to bring air inside or blow air outside with the push of a button. All of this means that this unit is especially great if allergies or cleanliness is an issue for you. It’s also pretty quiet, and that’s always a plus. The fan itself is best used when cooling a small room, which is what it’s primarily designed for.

The cons of this unit aren’t terrible, either. One issue is the fact that the engine and other components aren’t waterproof, meaning that the unit should be removed from any windows or exposed areas during rainstorms. There are some reported issues with the unit not fitting in all windows, and this is somewhat exacerbated by the fact that it doesn’t include any extenders.


  • Bug screen and fabric cover are included.
  • Electronically reversible for air exhaust.
  • Includes a remote for ease of use.
  • Fans can run together or independently.
  • Very clean.


  • Motor and controls are not waterproof.
  • May not fit all windows.
  • Isn’t very powerful.

4. HowPlumb Portable Twin 9″ Reversible Window Fan with Remote Control

The HowPlumb portable twin window fan is a decent dual window fan for the price. It doesn’t produce very much noise for a fan of it’s size and is great for sleeping near. Like a few other models on this list, it includes a bug screen for keeping pest out, and a fabric cover to prevent dust and heat from coming inside when not in use. 

The fan has electric reversible settings, meaning that you can just flip a switch to change from intake to exhaust. It also includes a remote, meaning that you can change settings or turn it off with the press of a button.

The downsides of the fan seems to be that it has issues staying stable in windows, and often has some issues fitting in certain windows. Extenders aren’t included, meaning that what you have is what you’ve got. The fabric screens also sometimes have quality control issues. On the bright side, HowPlumb offers replacements for them in the case that yours don’t meet expectations.


  • Includes snap-on feet.
  • Includes a bug screen and fabric cover.
  • Runs quietly.
  • Has electric intake and exhaust functions.


  • Fits in windows poorly.
  • The screens have quality control issues.

5. Lasko 2137 Twin Window Fan

The Lasko 2137 twin window fan is a pretty impressive design that stands out for its unique features. This is namely thanks to the built-in expanders. While many models on this list come with expanders that are separate pieces or none at all, the Lasko 2137 has the expanders built-in, meaning that they can never be lost and let you fit the fan into a variety of spaces. 

The slim profile of the fan makes it easy to transport or store away when not needed. Compared to other fans on this list, it is great if all you need is a unit for venting out air from a room rather than drawing air in. This makes it perfect for smokers, hobbyist, or other uses where you need to get fumes out of a room quickly.

On the flip side, there are some consequences to it’s designed lightness. This mainly comes in the form that the unit is somewhat delicate in nature and may not take well to being handled roughly or dropped. Also, if you plan on using this unit for both intake and exhaust, you will need to flip it around to do that manually.


  • Slim profile.
  • Built in expanders.
  • Great for ventilation purposes


  • Somewhat delicate.
  • Has to be manually turned around to exhaust air outside.

6. COSTWAY Twin Window Fan 7″ 2-Speed Setting Reversible Airflow Dual Blade Fan

The Costway twin window fan is an affordable and cheaply priced fan that is great for buyers on a budget. One of the big advantages of this unit is that it can work well as an exhaust unit for a pretty affordable price. It tends to fit well in most windows and comes with adjustable feet to allow you to secure it if need be. 

This unit also comes with manual controls, meaning the no matter what side you have the unit flipped to, you can control it without having to remove it. All in all, it makes a great budget priced unit for someone who just needs some ventilation in a room for recreational purposes.

Unfortunately, there are some infrequent reports that the unit can have poor construction or other quality control issues. It also tends not to have much power on the lowest setting when pulling air inside, so that should also be taken into consideration. Despite those flaws, it actually has few to no reports of failure or breakage like some models so that it may last you longer than other units on the market.


  • Fits great in windows.
  • Manual intake controls.
  • Affordable.
  • Great as an exhaust unit.


  • Somewhat spotty quality control.
  • Not very powerful.

7. Genesis Twin Window Fan with 9 Inch Blades

The Genesis twin window fan is a great unit with some cool features. The adjustable thermostat can detect the current temperature and can start and stop the fan based on your settings. The convenient LED lights help give a visual indicator of what settings the fan is running on, or what the temperature is in the room. 

The motors are billed as being built to withstand rough weather conditions and are constructed out of durable materials. It comes with built-in extenders that allow it to get up to 6 inches of more coverage for different window sizes. The independent motors mean that you can run both exhaust and intake at the same time. Those would be an especially convenient feature for a kitchen. Lastly, it comes with a pretty durable carrying handle.

There are some reports of problems with the motors. These issues don’t seem to be widespread and are generally noticeable before you even turn it on.


  • Adjustable thermostat with LED lights.
  • Durable motors that can withstand poor weather conditions.
  • Built in extenders.
  • Convenient carrying handle.
  • Independent motors for use as intake and exhaust simultaneously.


  • It can have issues with fans not working correctly.

8. Bionaire BWF0910AR-WCU Remote Control Window Fan

The Bionaire BWF0910AR-WCU window fan has some great features. It may very well be the quietest running fan on this list, and at low setting is barely noticeable. The cost effective nature of the fan makes it perfect for saving money on air conditioning in the summertime. 

A convenient remote control allows you to change the setting or turn it on and off from the comfort of a bed or couch. It’s also electronically reversible, meaning that you can change it from intake to exhaust without having to move and flip the fan physically.

The main issue that this fan has is that despite the fan itself running quietly, the electronic sounds that indicate when a setting has been changed are said to be far louder than they should be. Likewise, the LED indicators tend to be very bright, which can be obtrusive if you plan on sleeping near the fan. The only other flaw is that the fan doesn’t have any feet like some other models do that allow you to stand the fan in a room and use it as a floor or table unit.  


  • Digital thermostat.
  • Cost-effective.
  • Remote control with three-speed settings.
  • Quiet and efficient.
  • Electronically reversible.


  • Lights and sounds while changing settings can be obtrusive.
  • It has no way to stand on its own for use on a floor.

9. Comfort Zone CZ310R 3-Speed 3-Function Expandable Reversible Twin Window Fan.

The Comfort zone CZ310R is a pretty lovely fan. It has a beautiful array of features that make it worth considering. Like some models, this fan has retractable “accordion” expanders that allow you to fit the fan in a wide variety of window sizes and shapes. 

It also has fans that run on independent motors. This means that you can have one fan pulling air in and the other pushing air out. This can be pretty useful in a wide variety of situations. Likewise, you can even turn one fan off if you don’t need it while the other runs. The remote control is a great feature too. It allows you to control both fans without ever having to get up. It also includes a screen that prevents bugs, dirt, and debris from coming inside while the unit isn’t in use.

The only real drawbacks to this unit are that it’s noisy and doesn’t have any way to open the fan up to repair it in the case that a part breaks. Seemingly the noise can be a real issue if you plan on sleeping near it.


  • Removable screen to prevent bugs and dust.
  • Accordion expanders allow for a better fit in different sized windows.
  • Independent fans can blow air in or out with electronic controls.
  • Has a great remote control.


  • Is somewhat noisy.
  • Has no way to open the fan for repairs.

10. Optimus F-5280 7-Inch Twin 2-Speed Window

The Optimus F-5280 is a pretty fun unit. Some users have reported that they buy a bunch of them to use all at one time. One of the great things about this unit is the fact that it comes with removable feet that allow you to use the fan as a free-standing unit. 

It also has a carrying handle that will enable you to easily transport the fan without having to worry about dropping it. Its built-in extenders allow the fan to fit in a wide array of windows. It also has rain-resistant parts, which is always a huge plus for any window fan. Overall, this a decent unit and should be considered.

There aren’t that many cons, luckily. The major one is that the unit has no bug covers, and some users have had issues with this. Some buyers have also found that units can be damaged via the way that they are shipped, usually just in their retail packaging, without any additional shipping packaging.


  • Includes feet for use as a standing unit.
  • Rain resistant parts for use during poor weather conditions.
  • Built-in extenders.
  • Convenient carrying handle.


  • Has no bug covers.
  • Some issues with how it’s shipped.


The dual-window fans on this list are all decent fans in their own ways. In general, you need to be aware of what you need and want from any particular fan before you buy it. Certain fans tended to be much better at exhaust, while others seemed to be made for use in a bedroom. If you live in an area with an insect problem, you may want to prioritize units that have a bug screen. Regardless, the units in this list are all quality units that are worth your time regardless.