10 Best 21 Inch Reversible Window Exhaust Fan For Smokers of 2025

Tested and Reviewed: Top 10 21 Inch Reversible Window Exhaust Fan For Smokers deals with expert ratings from 8.1 to a perfect 10

June 2025 Edition

Editor's Choice

9.7

Save 16%

Comfort Zone

Comfort Zone Window Fan for Bedroom, 9 inch 3 Speed Dual Fans with Auto-Locking Expanders, Window Exhaust Fan, Removeable Bug Screen, White

16% OffFree Shipping

Editor's bottom line:

“This 21 inch reversible window exhaust fan for smokers is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

ADJUSTABLE 3-SPEED CONTROL: Experience complete control over your airflow with the 3-speed dial control of this twin speed window fan. Choose between low or high air output options to create a gentle and soothing airflow or a brisk and invigorating breeze, tailored to your preference. In addition, this fan introduces an all-new quiet speed setting, perfect for those moments when you desire a whisper-quiet operation without compromising on cooling efficiency. Create the ideal atmosphere and airflow for any occasion.
SECURE AUTO-LOCKING EXPANDERS: Experience a secure and snug fit with the auto-locking accordion expanders featured in this twin airflow window fan. Designed for convenience, these expanders effortlessly adjust to fit window openings ranging from 22-1/4" to 33". Enjoy peace of mind knowing that your fan is securely installed and properly sealed. This plug-in fan ensures hassle-free operation without the need for batteries. Enhance your airflow control with the reliable and practical features of this window fan.
VERSATILE REVERSIBLE FUNCTION: Take advantage of the manual reverse option provided by this twin blade window fan. With this feature, you can switch between two modes of operation. Draw cool and refreshing air into your home by using the intake function, ensuring a comfortable and rejuvenating atmosphere. Alternatively, use the exhaust function to effectively push hot and stale air out of the room, promoting better ventilation and air circulation. Embrace the versatility and control offered by this fan.
EASY-TO-REMOVE PROTECTIVE COVER: Enjoy the convenience of a removable fabric cover on this fan. Designed to provide protection against bugs and debris, the cover keeps unwanted elements out. When the fan is not in use, the cover acts as a barrier, preventing hot and humid air from entering your home. This feature helps maintain a comfortable indoor environment even when the fan is not actively circulating air. With the easy-to-remove cover, you can effortlessly clean and maintain your fan, ensuring optimal performance and longevity.
VERSATILE AND PORTABLE DESIGN: Experience the convenience of this twin blade window fan's versatile design. Equipped with two sturdy feet, it can be easily placed on a tabletop or any flat surface, providing optimal airflow wherever you need it within your home. The fan features a convenient carrying handle, allowing for effortless portability and the flexibility to move it from room to room. Enjoy the convenience and versatility of this fan's design, ensuring cool and refreshing air throughout your living space, wherever you may need it.

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Picked by 343 people today

9.5

Save 6%

Sharper Image

Sharper Image PORTAL Window Fan with 3 Speeds, Reversible Exhaust Mode, Weather Resistant, White, Black

6% OffFree Shipping

Main Highlights

STRONG AIRFLOW The weather-resistance design utilizes a strong airflow to pull fresh air in from outside or exhaust stale air out of your home.
REVERSIBLE EXHAUST Transition the airflow from fan to exhaust with the touch of a button.
PERFECT FIT Seamlessly fits into windows 24 to 38 wide using an innovative modular block system. Created for use in single-hung and double-hung windows with an opening at least 8" tall.
INTUITIVE CONTROLS Choose from 3 speed settings with minimal noise to customize your comfort.
IMPORTANT INSTALL INFO Product dimensions are 6.57 tall x 23.85 wide x 6.12 deep. Window screen removal may be necessary depending on depth of your window. Can only be installed in horizontal position.

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9.5

Sharper Image

Sharper Image PROFILE Window Fan with 3 Speeds, Reversible Exhaust Mode, Weather Resistant, White

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Main Highlights

STRONG AIRFLOW This advanced window fan is designed to bring a refreshing breeze into your living room or bedroom. Its robust airflow system efficiently pulls fresh air from outside or expels stale air, ensuring optimal ventilation and comfort in your space.
REVERSIBLE EXHAUST With just a touch of a button, easily switch between intake and exhaust modes. Whether you need to cool down or ventilate, this versatile fan adapts to your needs with minimal effort.
PERFECT FIT Engineered to fit perfectly into windows ranging from 26 to 38 wide, this window circulator features an innovative modular block system. Ideal for single-hung and double-hung windows with an opening of at least 8 tall, it ensures a secure and snug installation.
INTUITIVE CONTROLS Enjoy a serene environment with 3 adjustable speed settings. Customize your comfort and create a tranquil atmosphere in any room with this sleek and efficient circulator.
IMPORTANT INSTALL INFO Product dimensions are 6.61 tall x 25.94 wide x 5.22 deep. Window screen removal may be necessary depending on depth of your window. Can only be installed in horizontal position.

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9.2

Nalle

Nalle 10 Inch Window Reversible Exhaust Fan Through-wall installation Ventilation Fan Shutter Box Blower Ventilation Air Extractor for Bathroom Garage Greenhouse Panel size 13.5X13.5

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Main Highlights

Large Airflow ventilation --Large air volume ventilation: The exhaust volume of this louver ventilation fan is 460CFM, and the air intake volume is 380CFM. The thickened blades are more stable and the ventilation speed is faster.
Large Airflow ventilation --Large air volume ventilation: The exhaust volume of this louver ventilation fan is 460CFM, and the air intake volume is 380CFM. The thickened blades are more stable and the ventilation speed is faster.
Can Exhaust In Reverse -- This exhaust fan is a 2-way linkage type ventilation fan.In addition to exhausting smoke, it can eliminate sweltering hot air masses, and inhale cool nature wind to achieve ventilation.
Stable & Durable Exhaust Fan -- High-quality wear-resistant sleeve bearing motor, which can continually work for 9,000 hours, quiet and stable. The shell and fan are made of high-quality ABS material, which is sturdy and durable.
Easy To Install -- Applied to vents, kitchen, bathroom, shopping mall, bedroom, living room, it comes with 55 inch power cord with plug.The detachable design is convenient for cleaning up fragment or greasy dirt regularly for increasing service life.
Overheat Protection Easy Operation - with overheat protector, efficient temperature fuse, safer to use.The first pull, the fan runs and exhausts outward. The second pull, the fan reversely runs, and the air is inward. The third pull, the ventilation fan stops running and the louver will close.
100% after-sales service-- For All customers, this product comes with Lifelong Technical Support & 24 hours Premium Service. If you have any issues about the ventilation fan, please contact us first, we will give you the satisfied solution as soon as possible.

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9.0

BLACK+DECKER

BLACK+DECKER 9" Dual Window Fan for Window Screen with 2 Speed Settings, Twin Window Fan with Mechanical Controls and Removable Legs, Horizontal Cooling Fan for Window

Main Highlights

Twin Window Fan: Enjoy breezy dual airflow with this BLACK+DECKER 9" twin window fan. Double the air circulation in your bedroom, kitchen, living room, bathroom and any other area in your home.
Speed Settings: Our double room fan (23.8" x 4" x 12.6") for windows has 2 speed settings (Low & High) that are mechanically controlled so you get the breeze you want with the poly fan blades designed for maximum air flow.
Reversible Twin Fan: Install our dual small window fan (4.5 lbs.) upstairs, downstairs and anywhere you please, which can draw in fresh air from the outside or push indoor air out of a room.
Expanders & Legs: This twin fan for bedroom and dual bathroom window fan comes with accordion expanders that range from 22.5 - 33" and removable legs to accommodate the perfect window fit.
Quality Guaranteed: This BLACK+DECKER 9 inch dual window fan is made of the rust-resistant construction for optimal performance and ongoing durability. Additionally, our window bathroom fan comes in white or black.

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8.8

BLACK+DECKER

BLACK+DECKER 9" Dual Window Fan for Window Screen with 2 Speed Settings, Twin Window Fan with Mechanical Controls and Removable Legs, Horizontal Cooling Fan for Window

Free Shipping

Main Highlights

Twin Window Fan: Enjoy breezy dual airflow with this BLACK+DECKER 9" twin window fan. Double the air circulation in your bedroom, kitchen, living room, bathroom and any other area in your home.
Speed Settings: Our double room fan (23.8" x 4" x 12.6") for windows has 2 speed settings (Low & High) that are mechanically controlled so you get the breeze you want with the poly fan blades designed for maximum air flow.
Reversible Twin Fan: Install our dual small window fan (4.5 lbs.) upstairs, downstairs and anywhere you please, which can draw in fresh air from the outside or push indoor air out of a room.
Expanders & Legs: This twin fan for bedroom and dual bathroom window fan comes with accordion expanders that range from 22.5 - 33" and removable legs to accommodate the perfect window fit.
Quality Guaranteed: This BLACK+DECKER 9 inch dual window fan is made of the rust-resistant construction for optimal performance and ongoing durability. Additionally, our window bathroom fan comes in white or black.

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8.6

shinic

shinic 9" Twin Window Fan with 270° Rotatable Fans, 2-Speeds, Vertical Window Fan with Rigid & Accordion Expanders, Width Adjustable (21.65" To 33.27"), Ideal for Home, Kitchen, Bedroom, Office

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Main Highlights

[Easily Manual Control] Two speeds controlled by a user-friendly knob on the fan make for simple. The dual window fan can offer strong airflow quickly cool down in hot summer and improve air circulation.
[Window Fans with Exhaust and Intake] This bathroom window fan features dual heads, can be manually adjusted to achieve 3 functions: dual cooling, dual exhaust, and simultaneous intake and exhaust. By simply adjusting the angle of the two fan heads, you can customize airflow to suit your needs. Whether you want to bring in fresh air, exhaust oder air, or circulating, this fan provides versatile ventilation options and conveniently maintain a comfortable environment in your home.
[Auto Locking Expander] This window fans for home bedroom has extendable panels that automatically lock on one side, and 2 additional rigid expanders on the other side. You can freely change it from 21.65" to 33.27", providing versatility to fits most windows. Also this vertical window fan can be installed horizontally or vertically for sliding windows. The rigid expanders provide added stability, especially when mounted vertically, ensuring a secure fit.
[Portable & Safe] With handles, it is more convenient to move; two feets can make the twin window fan more stable and can be freely disassembled as needed. With 70 watts and a voltage of 120 volts, it delivers efficient performance. This household window fans have also passed ETL safety certification, allowing you to use them more at ease.
[The Shinic Customer Service] The Shinic Customer Service Department are here to help you with any After-sales issues. Upon receipt of the window fan, please check the appearance of the product immediately and test the product to see if the heater is functioning properly. If you are not satisfied with the product in any way, please contact our customer service team immediately and we'll be happy to help! We guarantee that any questions will be answered within 0-12 hours.

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8.3

Craig

Craig Dual Window Fan with Reversible Airflow - Perfect Window Fans for Home Bedroom, Exhaust & Intake Options, Remote Controlled

Free Shipping

Main Highlights

Enhanced Functionality & Design: Our dual window fan is not just about versatility; it's about optimized performance. With 3 speed settings and 3 modes of operation - cooling, exhaust, and circulate - you can customize your air circulation needs with precision. The improved fan design delivers higher airflow for more effective cooling and ventilation. Plus, the integral carrying handle and an expandable width from 23.5 to 37 ensure it fits most windows and is easy to move and install.
Reversible Airflow Control: Tailor your cooling experience with the reversible window fan feature, enabling you to switch between drawing fresh air in or pushing stale air out, perfect for maintaining a comfortable atmosphere in your home.
Remote Access: Enjoy the ease of adjusting your twin window fan settings with a handy remote control. Adjust speeds, modes, and airflow directions without ever having to leave your comfort zone.
Easy Installation: Designed to fit most double-hung and slider windows, this window box fan comes with adjustable extenders for a secure fit, ensuring quick and hassle-free installation in any room.
Energy Efficient: Our double window fan is not just powerful but also energy-efficient. Keep your home bedroom cool and well-ventilated without the high energy costs, making it an eco-friendly and cost-effective choice.

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8.1

Jarden

Bionaire Thin Window Fan with Manual Controls(BWF0502M-WM)

Free Shipping

Main Highlights

VERSATILE REVERSIBLE AIRFLOW - Multi-functional electronic blades can be set to draw in outdoor fresh air, exhaust out indoor warm air or simultaneously exchange airflow for maximum cooling efficiency
3 SPEED SETTINGS - Select your optimal airflow with low, medium and high settings for a customized cooling experience
PROGRAMMABLE THERMOSTAT - Automatically turn the window fan on and off based on desired selected temperature setting and monitor current room temperature on an easy-to-read digital LED screen display with dimmer function
MADE TO FIT - Designed to fit most double hung, vertical slider and casement windows and includes a built-in accordion extender panel and an additional extender panel to ensure a secure fit ranging from 24" to 36"
CONVENIENT REMOTE - Control window fan from across the room with included remote control for ultimate convenience
READY TO USE - No assembly required, easy installation, plug-in design and 3-year limited warranty

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8.1

Save 7%

Vornado

Vornado TRANSOM Window Fan with 4 Speeds, Remote Control, Reversible Exhaust Mode, Weather Resistant Case, Whole Room, Ice White

7% OffFree Shipping

Main Highlights

POWERFUL AIRFLOW Transom uses powerful airflow to draw fresh air into the fan from outside or exhaust stale air out of the room.
ELECTRONICALLY REVERSIBLE With one button, quickly transition the airflow from fan to exhaust. The reversible chamber works to keep you breathing easy by filtering out stale air.
PERFECT FIT Seamlessly fits into windows 26 to 40 wide with the patented Soft-fit foam block system. Designed for use with single-hung and double-hung windows with an opening at least 8" tall.
CUSTOMIZABLE COMFORT Choose from 4 speed settings with auto temperature control to maintain a set temperature. A remote control provides additional convenience.
IMPORTANT INSTALL INFO Product dimensions are 7.16 tall x 26 wide x 5.73 deep. Window screen removal may be necessary depending on depth of your window. Can only be installed in horizontal position.

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Our Best Overall Choice

Best Choice

9.7

Comfort Zone

Comfort Zone Window Fan for Bedroom, 9 inch 3 Speed Dual Fans with Auto-Locking Expanders, Window Exhaust Fan, Removeable Bug Screen, White

16% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

ADJUSTABLE 3-SPEED CONTROL: Experience complete control over your airflow with the 3-speed dial control of this twin speed window fan. Choose between low or high air output options to create a gentle and soothing airflow or a brisk and invigorating breeze, tailored to your preference. In addition, this fan introduces an all-new quiet speed setting, perfect for those moments when you desire a whisper-quiet operation without compromising on cooling efficiency. Create the ideal atmosphere and airflow for any occasion.
SECURE AUTO-LOCKING EXPANDERS: Experience a secure and snug fit with the auto-locking accordion expanders featured in this twin airflow window fan. Designed for convenience, these expanders effortlessly adjust to fit window openings ranging from 22-1/4" to 33". Enjoy peace of mind knowing that your fan is securely installed and properly sealed. This plug-in fan ensures hassle-free operation without the need for batteries. Enhance your airflow control with the reliable and practical features of this window fan.
VERSATILE REVERSIBLE FUNCTION: Take advantage of the manual reverse option provided by this twin blade window fan. With this feature, you can switch between two modes of operation. Draw cool and refreshing air into your home by using the intake function, ensuring a comfortable and rejuvenating atmosphere. Alternatively, use the exhaust function to effectively push hot and stale air out of the room, promoting better ventilation and air circulation. Embrace the versatility and control offered by this fan.
EASY-TO-REMOVE PROTECTIVE COVER: Enjoy the convenience of a removable fabric cover on this fan. Designed to provide protection against bugs and debris, the cover keeps unwanted elements out. When the fan is not in use, the cover acts as a barrier, preventing hot and humid air from entering your home. This feature helps maintain a comfortable indoor environment even when the fan is not actively circulating air. With the easy-to-remove cover, you can effortlessly clean and maintain your fan, ensuring optimal performance and longevity.
VERSATILE AND PORTABLE DESIGN: Experience the convenience of this twin blade window fan's versatile design. Equipped with two sturdy feet, it can be easily placed on a tabletop or any flat surface, providing optimal airflow wherever you need it within your home. The fan features a convenient carrying handle, allowing for effortless portability and the flexibility to move it from room to room. Enjoy the convenience and versatility of this fan's design, ensuring cool and refreshing air throughout your living space, wherever you may need it.

Show Price

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