6 Quietest Window Fans of 2021

Last update: 2021-12-01

Having a window fan in your room is an affordable yet effective way to keep cool in the summer if you want to enjoy the season to the fullest. They’re easy to install, versatile, and user-friendly.

The only bother is noise, however, you won't find that in these six options. Read on and check out our quietest window fans:

Here are the quietest window fans you can buy in 2021:

  • Powerful: Holmes Group Bionaire BWF0522E-BU
  • Sturdy: Bionaire Window Fan with Twin 8.5-Inch Reversible Airflow Blades
  • Easy To Clean: BEYOND BREEZE Premium 9” Twin Window Fan
  • Easy To Install: Comfort Zone CZ319WT
  • Best For Bathrooms: JPOWER 9-Inch Twin Window Fan
  • Best For Narrow Windows: Lasko Twin Window Fan
6 Quietest Window Fans
Powerful
Holmes Group Bionaire BWF0522E-BU
    Sturdy
    Bionaire Window Fan with Twin 8.5-Inch Reversible Airflow Blades
      Easy To Clean
      BEYOND BREEZE Premium 9” Twin Window Fan
        Easy To Install
        Comfort Zone CZ319WT
          Best For Bathrooms
          JPOWER 9-Inch Twin Window Fan
            Best For Narrow Windows
            Lasko Twin Window Fan

              Powerful: Holmes Group Bionaire BWF0522E-BU

              Holmes Group Bionaire BWF0522E-BU
              Holmes Group Bionaire BWF0522E-BU
              9.6Outstanding
              Pros
              • 40% greater air velocity than regular window fans
              • Easy to control – LED control panel, electronic thermostat, & 3-speed settings
              • Secure - dual locking extender screens
              Cons
              • Not reversible automatically

              Getting started with the Holmes Group Bionaire BWF0522E-BU!

              Despite the size of 4.5 x 27 x 9 inches, it offers 40% greater air velocity than conventional window fans, with three-speed settings and an electronic thermostat - all are easily tracked on a LED control panel.

              A bonus is this window fan can be installed either vertically or horizontally. It also features dual locking extender screens which help keep it in place.

              Holmes Group Bionaire BWF0522E-BU Specifications

              Dimension

              7.8" Height x 36.8" Width x 3.4" Depth

              No of Blades

              3

              Blade Diameter

              5.75"

              Speed Settings

              3

              Highlight Features

              40% greater air velocity than regular window fans

              dual locking extender screens

              Verdict

              The Holmes Group Bionaire BWF0522E-BU is highly recommended for those in need of the most powerful window fan in the market.

              Sturdy: Bionaire Window Fan with Twin 8.5-Inch Reversible Airflow Blades

              Bionaire Window Fan with Twin 8.5-Inch Reversible Airflow Blades
              Bionaire Window Fan with Twin 8.5-Inch Reversible Airflow Blades
              9.6Outstanding
              Pros
              • Sturdy enough to withstand strong winds
              • Versatile - dual fan blades with separate settings
              • Conveniently control the fan functions - remote control
              Cons
              • Sharp hard plastic housing, which damages the power cord
              • Loud beep sounds

              Unlike many other flimsy plastic window fans we tested, the Bionaire is well-made and sturdy enough to be used in a window on a windy day.

              Besides its materials, the dual fan blades with separate settings really impressed us. It allows you to set it to exhaust hot air inside out or draw fresh air outside in or does both at a time.

              The window fan also comes with a remote controller for extra convenient controls.

              Note: Bionaire Window Fan is specifically designed for double-hung, vertical slider windows.

              Bionaire Window Fan with Twin 8.5-Inch Reversible Airflow Blades Specifications

              Dimension

              25.5 x 14.1 x 6 inches

              No of Blades

              2

              Blade Diameter

              8-1/2 inches

              Speed Settings

              2

              Highlight Features

              Sturdy enough to withstand strong winds

              dual fan blades with separate settings

              remote control

              Verdict

              If you're in search of the sturdiest and quietest window fan, our top choice is the Bionaire Window Fan with Twin 8.5-Inch Reversible Airflow Blades

              Easy To Clean: BEYOND BREEZE Premium 9” Twin Window Fan

              BEYOND BREEZE Premium 9” Twin Window Fan
              BEYOND BREEZE Premium 9” Twin Window Fan
              9.4Outstanding
              Pros
              • Easy to clean – removable grille
              • Able to work as a mini floor fan – two detachable legs
              Cons
              • The beep sound when changing the fan settings is loud

              This window fan by BEYOND BREEZE is an impressively quiet, compact, and affordable unit that will certainly meet any cooling needs without breaking the bank.

              It features three function options, three fan speeds, and two blades with separately reversible motors.

              But making it stand out from the competition is the removable grille - which makes cleaning jobs a lot easier. It also highlights two detachable legs to work as a mini floor fan.

              BEYOND BREEZE Premium 9” Twin Window Fan Specifications

              Dimension

              26 x 5 x 14 inches

              No of Blades

              6

              Blade Diameter

              9"

              Speed Settings

              3

              Highlight Features

              removable grille

              two detachable legs

              Verdict

              For people who are searching for a window fan that is both quiet and easy to clean, the BEYOND BREEZE Premium 9

              Easy To Install: Comfort Zone CZ319WT

              Comfort Zone CZ319WT
              Comfort Zone CZ319WT
              9.2Outstanding
              Pros
              • Easy to install – practical power cord position & auto-locking expanders
              • Prevent debris, dust, and bugs from getting into the house - removable fabric cover
              Cons
              • NO reverse switch

              Of all the window fans we tested over the past few years, the Comfort Zone CZ319WT is the easiest to install. No installation is necessary, actually. All you need to do is pop it back in and out.

              As it has auto-locking expanders, you can easily adjust it to fit the width of your windowsill.

              A big plus is the power cord position - which comes out the middle in a small gap, so no matter you install the fan intake or outtake, it can come in either direction you like.

              About the functionality, aside from its effective cooling performance, we particularly loved the removable fabric cover that helps prevent debris, dust, and bugs from entering your house.

              Comfort Zone CZ319WT Specifications

              Dimension

              22.75 x 5.63 x 11.63 inches

              No of Blades

              3

              Blade Diameter

              9 inches

              Speed Settings

              2

              Highlight Features

              practical power cord position & auto-locking expanders

              removable fabric cover

              Verdict

              The Comfort Zone CZ319WT is an excellent option for people who are in need of a quiet, easy-to-install window fan.

              Best For Bathrooms: JPOWER 9-Inch Twin Window Fan

              JPOWER 9-Inch Twin Window Fan
              JPOWER 9-Inch Twin Window Fan
              9Outstanding
              Pros
              • Perfect for bathrooms – reversible function & three-speed settings
              • Run safely – built-in thermostat with LED indicators
              Cons
              • The blue light is too bright at night

              Our next pick is specifically designed for slider and double-hung windows from 22.8" to 36" width.

              It's powerful, easy to control, and can help optimize indoor air quality. It can suction hot, moisture indoor air outside thanks to the reversible function, three-speed settings, and a remote controller.

              The fan also has a thermostat ranging from 60 to 90 degrees F, along with visibly light indicators.

              Considering all those features, we believe this is a great choice for the bathroom.

              JPOWER 9-Inch Twin Window Fan Specifications

              Dimension

              24.5 x 12.75 x 7 inches

              No of Blades

              6

              Blade Diameter

              9”

              Speed Settings

              3

              Highlight Features

              reversible function & three-speed settings

              built-in thermostat with LED indicators

              Verdict

              While we wouldn't call it the strongest window fan, the JPOWER 9-Inch Twin Window Fan is versatile enough to work great in any bathroom.

              Best For Narrow Windows: Lasko Twin Window Fan

              Lasko Twin Window Fan
              Lasko Twin Window Fan
              9Outstanding
              Pros
              • Ideal for narrow windows – expanders ranging from 22
              Cons
              • No electronically reversible function

              The Lasko Twin Window Fan is dedicatedly made for narrower windows ranging from 22" to 32" wide of all styles (whether slider, casement, or double-hung), all thanks to its reliable expander panels.

              It is easy to install, user-friendly, and quiet.

              Its two-speed settings are moderate to clear the steaming, bad smell, or hot air from a living space. And, at the lower settings, it works almost silently, which is ideal for bedrooms.

              For the price, it's a great value.

              Lasko Twin Window Fan Specifications

              Dimension

              5.15 x 21.75 x 10.15 inches

              No of Blades

              3

              Blade Diameter

              7.5 inches

              Speed Settings

              2

              Highlight Features

              expanders ranging from 22" to 32" wide

              fit any window styles, from slider, casement, to double-hung

              Verdict

              The Lasko Twin Window Fan comes in a great size for narrow windows plus it works quietly yet powerfully.

              How To Choose The Quietest Window Fan?

              Noise Level

              As we're looking for the quietest window fan, the noise level is obviously the top priority to consider.

              The matter is most manufacturers don't indicate the noise level of their product on the packaging. However, there are some features that will help you figure out whether a window fan is quiet or not. Here are common causes of noisy window fans while operating:

              • High-speed settings
              • High RPM
              • Old models
              • Many moving parts
              • Lack of noise-dampening features
              • Improper installation

              Window Fan Size

              As stated above, improperly fitting window fans to the existing window size will cause rattle noise.

              Therefore, it is important to measure the window that you plan to install a window fan on, then choose the right fan size.

              Determine The Air Volume That You Need

              To move the same air volume, small window fans need to rotate more in a certain time than a larger one, which makes it noisier.

              From that point, you should consider the room size and the required air volume before choosing the right fan size and RPM settings. Besides, a window fan with multiple speed settings will come in handy for different air-ventilating needs at different times during the day.

              Quality

              Poor-quality window fans are prone to work noisily because their components tend to wear over time, which leads to more moving parts and causes more rattle noise.

              Therefore, we highly recommend you invest in a high-quality product.

              Which Brands Make The Quietest Window Fan?

              Holmes

              Holmes has been in the air-improving product industry for over 40 years. Up to now, their products are varied, spreading from filters, fans, humidifiers, to air purifiers. In terms of window fans, they are renowned for speeds, power, and compact size for versatility.

              Bionaire

              What makes Bionaire® Brand outstanding from the rest is rich expertise, advanced technology, innovation, and quality. Besides, they are the pioneers in their field by blending nature and technology, science and art into their products.

              Lasko

              With over 100 years of experience in this industry, Lasko is now the best distributor of innovative fan products to customers around the world. They're a proud American-made company, which ensures the quality.

              FAQs

              Are window fans good?

              Window fans are proven to be good when having them worked in pairs in two different windows: one to push hot indoor air out and one to suction cool outside air in.

              How can I make my window fan quieter?

              To make your window fan quieter, you can:

              • Hack the fan cage
              • Check and consider replacing the cushioning
              • Lubricate the fan motor
              • Align fan blades
              • Tighten any loose knobs or screws
              • Frequently clean the fan
              • Place the fan on a carpet, rug, or a noise-dampening sheet
              • Put it on a flat surface

              Do window fans use a lot of electricity?

              No, they don't. Regular window fans consume only 35-100 watts based on their model and make.

              Can you use a window fan not in a window?

              It's hard to use a window fan without a window because the way it works is to draw air outside in or inside out to either cool or warm the room.

              Will rain hurt a window fan?

              Yes, it will. Most window fans aren’t built to be capable of withstanding poor weather conditions or heavy rains.

              Conclusion

              Windows fans are the do-everything gear. They can suction hot air in a room while drawing cool air outside in to increase the ventilation, making the entire space cooler.

              Our comprehensive testing for power, speeds, and durability provide you with the information to know which quietest window fan as mentioned above is right for you.

              Eugene Williams
              Eugene Williams

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