Top 10 Best Window Fans in 2021 – Buying Guide

Best Window Fans

If you desire a cooler and fresher environment you will find this review on the 10 best window fans 2021 worth looking at. When indoors, people desire to be in a conducive a, comfortable and relaxing environment. It shouldn’t be too hot, too cold, too stuffy or too damp.

Unfortunately, there are times when the air and ambiance won’t be right and this may because by high temperatures, damp /moldy air, unpleasant smells and much more. One of the most reliable and cost-effective ways to deal with these problems is installing a window fan. In addition to good circulation of cooler air it also eliminates chemical smells, bad odor and smoke.

Finding the Right Window Fan

Window fans aren’t built in the same manner. However, it’s quite challenging to differentiate a good type from a not-so good one. To make the best choice it’s paramount to pay attention to the following:

  • Size: It’s important to match the fan with the size of the window. A small one may be overworked while a big one may consume unnecessary energy.
  • Design: The windows are available in either single or double fans. The twin-type may be more suitable for large spaces and will still operate with one fun in case the other fails.
  • Noise: Good fans are not only effective in coiling but also produce minimal noise so as to create a comfortable environment.
  • Power: It’s vital to focus on the airflow strength as this influences how well the product is suited for the room and window. Good cool air circulation and elimination of odors is influenced by the motor power, fan size and design, materials used and more.

Best Window Fans in 2021


10. Avalon Window Fan


Installing the Avalon twin window fan will make your home, office and other places cooler and fresher. It features 2 high velocity fans with 9-inch blades which are connected to a powerful electric motor. The reversible airflow design allows the fans to operate as either intake or exhaust and comes with 3 speed settings (Low, Medium & High) plus an adjustable thermostat with a 60-80 degrees range.

The ECL Certified product also features LED indicator lights, measures 24 x 4 x 12 inches, weighs 8.4 pounds and has expandable side panels. Unfortunately, it seems to leave gaps that allow air in even when not needed for instance during winter.

Check Price at Amazon ➜

9. Holmes Twin Fan


The superiority of Holmes brand in regard to window fans is evidenced by this twin fan that measures 6(l) x 25.7(w) x 13.3(h) inches and weighs 7.2 pounds. It’s made of light but sturdy plastic and features two 8 1 /2 inch fans each consisting of 6 blades.

The heavy-duty and powerful motor spins the blade to get rid of kitchen smoke, dust, cigarette smoke; chemical odors while drawing in cleaner and fresher air. The main drawback is difficulty in pulling the latches to access the sizer once secured.

Check Price at Amazon ➜

8. Lasko 2155A Window Fan


The Lasko 2155A window fan is mainly made from plastic and is not only light bit also very portable. It weighs 14 pounds and measures 27 x 23 x 9 inches with the fan measuring 16 inches in diameter. The fan can fit in window spaces measuring at least 22 inches in height and from 26.5 to 34.5 inches wide.

The electrically reversible fan works as an intake or exhaust fan upon changing the setting and comes with a fused safety plug. Although effective, this window fan feels under powered in very large rooms.

Check Price at Amazon ➜

7. AirKing 9166 Window Fan


Moving fresh and cooler air inside the room while getting rid of the excess heat and offending odors can be accomplished with the AirKing 9166. The 20-inch has dimensions of 26.8 x 11.2 x 26.2 inches, weighs 33.4 pounds and can be fitted in windows openings measuring 27 – 38 inches in width and 26.25 inches high. It circulates air using a three- bladed fan that is linked to a 1/ 6 horsepower, 120-volt electric motor.

For added protection against rust and the elements, the grill is powder-coated. The OSHA Approved product unfortunately is slightly expensive compared to other options.

Check Price at Amazon ➜

6. Holmes Blizzard Window Fan


Although looking smaller than most of its competitors, the window fan by Holmes packs quite a punch. It is mainly made from plastic with a few pieces of metal here and there and is designed to be placed on an even base near the window. The 12-inch fan comes with a rotating grill and can easily be controlled with the included remote control.

It weighs 5.5 pounds, measures 4.7 x 16.7 x 17.9 inches, comes with an oversized handle and three speed settings. Unfortunately, due its narrow base, the window fan isn’t very stable and may tip over.

Check Price at Amazon ➜

5. Vornado 573 CR1-0118-06 Circulator Fan


Blowing cold air into the room doesn’t require a big and bulky window fan. You can still enjoy the convenience and comfort with the Vornado 573 CR1-0118-06. The 6.2 x 10.5 x 9.8 inch, 3.8-pound fan relies on the advanced Vortex Technology that blows air up to 60 feet away and is also super-silent.

Its flat panel design makes fitting on any window simple and easy while its elegant design boosts the room’s aesthetics. Unfortunately, it only blows in one way.

Check Price at Amazon ➜

4. Bionaire BWF0502M-WM Window Fan


This thin window fan by Bionaire can be mounted either vertically or horizontally and can fit in most windows. It consists of three fans whose speed depends on the chosen level. One fan runs on low, two on medium and all three on high. The fan also features manually reversible airflow and adjustable thermostat but can become a bit noisy when all the three fans are running.

Check Price at Amazon ➜

3. Honeywell Turbo Force HT-908


The HT-908 Turbo Force comes in a more improved design and is up to 30 % quieter than its previous model. This best selling circulator fan weighs 5.7 pounds, measures 15.9 x 9.2 x 15.7 (l,w,h) inches and comes with a single 15-inch fan that can blow cols air as far as 32 feet.

It features 3 speed settings and a removable grill for easy cleaning. Although it is up to 22% energy-efficient, the motor feels a bit under-powered compared to its closest rivals.

Check Price at Amazon ➜

2. Holmes Dual Blade Window Fan


Making the room cooler and more conducive can be done without wasting too much energy. All you need is the dual blade window fan by Holmes. Measuring 22.7 (L) x 11.7 (W) x 5.3 (H) inches and weighing 5.2 pounds, this device comes with dual blade operation and is effective in any kind of weather.

It is ideal for slider or double hung windows and comes with an extender screen and panel for use in large windows. The fan is up to 60% energy efficient and can be transformed from intake to exhaust and vice versa by pressing a button. The motor could do with more power, however.

Check Price at Amazon ➜

1. Bionaire Twin Reversible Window Fan


Creating the perfect indoor is achievable with the Twin Reversible airflow fan by Bionaire. This 8.4 pound unit measures 25.5(L) x 14.1(W) x 6(H) inches and can be placed on most windows either horizontally or vertically. It comes with electronically reversible blades, digital programmable thermostat and a 3 speed setting.

This allows you to change the airflow from intake to exhaust and vice versa and all information on the temperature, setting; level is displayed on the building LCD display. The major setback is that it tends to get noisier as speed increases.

Check Price at Amazon ➜

Identifying the right window fan isn’t as easy as walking in the park. In fact, you may be overwhelmed by the numerous choices in the market. Although coming in different brand names, sizes, capacities and strengths, all the products serve the same purpose which is to make the room cooler and eliminate bad odors.

A good window farm also needs to be effective, energy-efficient, powerful to create the right airflow, affordable and also elegant. It is therefore critical to have the right information before buying an item. We trust that the 10 best window fans in 2021 review will make it easier for you to make a well-informed decision.

Important Window Fan Features to Consider

Here are some tips to think about when choosing a top fan. In order to find the best window fan for your needs, you need to evaluate a number of key features and characteristics to find the right one.

Here’s what to look at to choose the best window fan for your needs:

Size of the Window Fan

As mentioned before, the size of a fan is one of the key things to pay attention to when buying one. In case you have big, long windows, opt for a twin model, so that there will be no gaps in between the window frame and the unit itself.

Having gaps in your window after installing the fan is highly undesirable since gaps are perfect places for small insects to sneak inside your home. Moreover, these gaps might also be used by criminals in order to get access to your premises, if the product is poorly secured into the window opening.

The size of the fan also plays a large role in relation to the size of the room or your home where it is being installed. If the area you intend to use it in is large, then choose a larger option for best window fan results.

Considering the above, we strongly recommend buying a fan that fully matches the size of your window. However, don’t worry – most of the models, even small window fans, perfectly fit into the standard window frames.

Before buying a fan, measure the size of your window frame and only then start your fan search. Make sure that the unit you intend to buy is easily installable. Moreover, it is important to ensure that the fan can be removed with ease for cleaning or other reasons.

Types of Window Fans

The type of the fan is as important as its size. There are two types of window-mounted fans: intake and exhaust. The former type works on the principle of pulling cold air from outside, while the latter exhaust type pushes stale air from inside your home. If you are looking to maximize the performance of your fan operations, purchase both types of units.

Place the intake fan on the shady side of your house to use it to pull the cool air overnight. Then, install the exhaust fan on the sunny side of your house to use it to push out the hot air from your premises.

In the same fashion, if you are only looking for one fan, choose the type according to where you intend to place the unit. In case you want to install the fan in the sunny side of your house, buy the exhaust type of the fan, and vice versa.

However, there is also a great option to buy a fan that is able to perform both these functions. These fans feature the reverse function, where you can switch the appliance from intake mode to exhaust and back. Twin window-mounted fans are the best window fans for versatility in how you manipulate the airflow in your home.

Durability And Safety of the Window Fan

Before buying a fan, pay close attention to what the fan is made of and who makes it. Choose a fan made of a strong and solid material in order to ensure longevity of the appliance. In case you have children in your household, think about safety measures before buying and installing a fan as well.

In order to make sure that the fan is safe to use, pay attention to the blades—you want to make sure they are secured by the outer grill of the fan.

Consider The Wind Direction for Your Window Fan

If you have lived in your current home for long enough, you probably already know the direction the wind blows around your house. As to be expected, some of the windows usually tend to have cooler outside air. We recommend installing the intake fan on these windows. This will maximize the efficiency of your fan, reducing the operational costs of the unit.

How to Position a Window Fan

If you are not sure about the direction of the wind in your area or if the direction of the wind is not constant, we would recommend purchasing the reversible models, so you can adjust the operation mode in line with the changes in the winds.

Noise Level of Window Fans

Some models tend to make noise when they are being operated. If you are indifferent to noise levels, you are lucky (unfortunately, I am not) and can basically choose any fan that. However, if you are a light sleeper or just don’t like the sound of a running fan, make sure you purchase a fan that operates quietly.

Why Should You Choose Your Window Fan Carefully?

Choosing the best window fan before you buy is important! Otherwise, you may buy a poor quality fan that doesn’t match the size of your room or apartment. Or, the fan may not do what you intended it to do in the first place.

For example, if you are looking to buy a fan to supplement your existing air conditioner, you may not need to buy as an expensive model than if you were going to use it every day. However, if you plan to use the fan a lot, look for a more powerful window-mounted fan model. The fans with only average capabilities probably won’t do the job. In addition, improper operation of a fan might also lead to the unit breaking down or no longer functioning like it should. Also, higher usage of the fan can also lead to higher operational costs, which in turn, lead to the higher electric bills.

Another important item to pay attention to is the type of fan. If you are living in an area that has a great deal of air pollution or you live near a busy street with car exhausts, the intake fan might be a mistake. In these cases, it’s better to consider an exhaust type of window-mounted fan, which will push out the stuffy air from inside the room. Also, the size of the fan needs special attention as well. For example, in the case where your windows are long and narrow, your fan may not fit the window opening.


Choosing the best window fan shouldn’t be a chore. Use the above tips to buy the one that best fits your needs. And if you need additional tips and ideas on buying a new fan, read our Window-Mounted Fan Buyers Guide.


Please enter your comment!
Please enter your name here