Best Inline Duct Fan

Peter | 13-12-2023

With so many Best Inline Duct Fan brands on the market – from prominent names like AC Infinity,YSSOA,VIVOSUN,VEVOR to smaller manufacturers – making the right choice can feel overwhelming. But we’re here to help simplify your search for the best product.

We extensively tested and evaluated dozens of top-rated Best Inline Duct Fan across various price points, spending over 100 hours comparing the contenders side-by-side. Based on our in-depth first-hand research, we compiled this list of stand-out Best Inline Duct Fan to consider. Our top recommendation is AC Infinity Best Inline Duct Fan for its uncompromising quality and performance.

Below you’ll discover more of our favorite Best Inline Duct Fan picks. And be sure to consult our buying guide for expert insights on selecting the ideal product for your individual needs and budget. With us guiding your decision, you can shop confidently knowing you’ve chosen an exceptional Best Inline Duct Fan you’ll truly love.

Editor's Choice
AC Infinity RAXIAL S4, Inline Booster Duct Fan 4” with Speed Controller - Low Noise Inline HVAC
AC Infinity RAXIAL S4, Inline Booster Duct Fan 4” with Speed Controller - Low Noise Inline HVAC
Premium Pick
YSSOA 4 Inch Inline Duct Ventilation Fan 195 CFM HVAC Vent Blower Exhaust Booster for Hydroponics
YSSOA 4 Inch Inline Duct Ventilation Fan 195 CFM HVAC Vent Blower Exhaust Booster for Hydroponics
Budget Pick
VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements,
VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements,

Top 10 Best Inline Duct Fan

We researched and compared the top products in the Best Inline Duct Fan category to provide you with these recommendations.

1. AC Infinity RAXIAL S4, Inline Booster Duct Fan 4” with Speed Controller - Low Noise Inline HVAC

AC Infinity RAXIAL S4, Inline Booster Duct Fan 4” with Speed Controller - Low Noise Inline HVAC
9.8

Ac Infinity

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  • A duct fan designed to boost airflow in HVAC systems and ventilate home spaces like attics and workshops.
  • Features a variable fan speed controller, enabling you to optimize airflow and noise level for any application.
  • Unibody die-cast construction with no welded seams; reduces vibration while ensuring smoother airflow.
  • AC brushless motor with steel blades and lubricated bearings; not suitable in restricted airflow applications.
  • Duct size: 4 | Dimensions: 7.28 x 3.95 x 3.95 in. | Airflow: 106 CFM | Noise: 28 dBA | Bearings: Dual Ball

2. YSSOA 4 Inch Inline Duct Ventilation Fan 195 CFM HVAC Vent Blower Exhaust Booster for Hydroponics

  • Effective ventilation: Quiet and efficient design with a fan speed of 2500 RPM for an air flow of 195 CFM. Powerful blower to move air to your target location for optimal ventilation
  • Easy assembly: Removable intake and exhaust ends with locking tabs for simple and easy hookup, no tools or screws required. Easy to install, quick to remove and convenient to maintain. The cable length is 5.9 feet and can be easily set
  • Quiet operation: Equipped with a flow deflector that makes the fan airflow more concentrated and reduces the turbulence energy. Run at only 30 dB noise level to ensure the grow operation wont disturb your life and does not have any harm to your health
  • Multi applications: Suitable for grow tent, greenhouse, basement workshops, bathroom or kitchen. Clean and freshen air. Keep environment humidity and temperature balanced
  • Premium design: Lightweight and compact fan takes up minimal space and fits in any grow room. High-quality blades and efficient flow deflector increase airflow while realizing smooth, whisper-quiet operation

3. VIVOSUN Inline Booster Duct Fan 4” 106 CFM with Speed Controller, HVAC Exhaust Ventilation Fan

VIVOSUN Inline Booster Duct Fan 4” 106 CFM with Speed Controller, HVAC Exhaust Ventilation Fan
9.1

Vivosun

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  • Durable: The fan has a strong motor which features a permanently lubricated bearing that operates quietly and requires no maintenance; The quality steel housing makes it sturdy and built to last
  • Adjustable Speed: A variable speed controller on the power cord enables the fan to run at different speeds; With this speed switch, you can adjust it to the desired airflow level
  • Compact But Efficient: This duct fan is compact and lightweight enough to be installed in areas with little available space; With a diameter of 4 inches, speed of 2990 RPM and 106 CFM airflow
  • Low Noise: Superior balanced centrifugal impeller for long service life & quiet operation; A less than 28 dB noise level does not have any harm and will not disturb your life
  • Wide Applications: You can have it in bathrooms, kitchens, workshops, basements, attics and etc, in order to boost airflow in HVAC systems; Also, it can be used in grow rooms as intake fans or exhaust fan

4. VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan HVAC Vent Blower for Hydroponics Grow Tent

VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan HVAC Vent Blower for Hydroponics Grow Tent
9.1

Vivosun

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  • Powerful Airflow: This VIVOSUN powerful blower with a fan speed of 2500 RPM can create an airflow of 195 CFM; It works efficiently in ventilating grow tents, transferring heat or cool rooms, circulating fresh air, as well as controlling proper humidity, temperature, and air quality for your grow area
  • Quiet Operation: Fitted with a flow deflector that concentrates the fan stream and cuts turbulent kinetic energy to reduce sound output to just 30 dB, which does not have any harm to your health and will not disturb your work
  • Safety Protection: The motor is ETL listed and features an automatic reset function to prevent overheating or other safety issues; The electrical junction box is made from flame-retardant components for fireproofing
  • Simple Hookup: The flanges on both the intake and exhaust ends are simple to assemble with the vent hose by locking tabs; A cord of 5.9-feet long for hassle-free setup; The housing, even the impeller and blades, are easy to detach for cleaning and maintenance
  • Wide Applications: It can improve airflow to reduce humidity, block odors, and lower temperatures in grow rooms, basements, or kitchens; Can be used with a variable speed controller (bought separately)

5. AC Infinity RAXIAL S6, Inline Booster Duct Fan 6” with Speed Controller - Low Noise Inline HVAC

AC Infinity RAXIAL S6, Inline Booster Duct Fan 6” with Speed Controller - Low Noise Inline HVAC
8.3

Ac Infinity

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  • A duct fan designed to increase airflow in HVAC systems and ventilate home spaces like attics and workshops.
  • Features a variable fan speed controller, enabling you to optimize airflow and noise level for any application.
  • Unibody die-cast construction with no welded seams; reduces vibration while ensuring smoother airflow.
  • AC brushless motor with steel blades and lubricated bearings; not suitable in restricted airflow applications.
  • Duct size: 6 | Dimensions: 7.28 x 5.90 x 5.90 in. | Airflow: 265 CFM | Noise: 35 dBA | Bearings: Dual Ball

6. VEVOR Inline Duct Fan, 6-Inch 400 CFM with Variable Speed Controller Quiet AC-Motor Ventilation

  • Universal Applications: Take a deep breath and relax. Our inline duct fan is specially designed as an exhaust for heat, humidity, and smoke, improving airflow in air planting tents, hydroponic planting rooms, electronic equipment rooms, kitchens, basements, etc. Get ready to go with the flow.
  • Blow Your Worries Away: Our inline fan provides a sufficient airflow of 400 cfm, enough to handle wide areas of ventilation and dehumidification, maintaining clean and fresh air circulation in dry environments all the time. Take control of any environment confidentially.
  • Power in Silence: Are you tired of loud, obnoxious ducts? Well, get ready to work in silence! Our inline exhaust fan is equipped with a high-quality AC motor that ensures strong power at a low noise of 34 dB, which will not disturb your work and life. At the same time, the motor saves 30% on energy consumption, extending its service life.
  • Control you can Feel: Do you want to get various airflow speeds at any time to achieve better ventilation effects while still being in control? Our inline air duct fan can be controlled via the manual knobs. You can adjust the speed to meet the ventilation needs of different environments. What are you waiting for? Go with the flow!
  • Everything You Need: To save time and cut costs dramatically, we provide a 6-inch inline fan with hang-up slings and non-vibration rubber mats and straps, so you can finish the installation quickly! You are in control! Choose between hanging it or mounting it on the wall.

7. Dreyoo 6 Inch Inline Duct Fans 460 CFM, 2 Pack Quite Ventilation Exhaust Fans with Duct Clamps for

  • For Mini Greenhouse: the package includes 2 sets of 6 inch duct fans and 4 duct clamps, perfect for regulating temperature and humidity in your mini greenhouse/grow tent; Measure 6 inches in diameter, small and portable for use
  • 460 CFM Airflow: with powerful fan motors, a high speed of 3000 RPM, wind pressure of 70pa, and airflow of 460 CFM, the ventilation fans can effectively enhance air circulation and help regulate the temperature and humidity in your grow tents
  • Low Noise Operation: adopts good noise reducing technology that ensures the fans run quietly, easy to neglect the noise; Ideal for use in spaces where noise is a concern, like bedrooms, bathrooms, and living rooms
  • Multiple Connection Ways: compared with a single duct fan, the parallel connection is for a quick change of air, air volume doubles while air pressure remains unchanged; While the series connection is for long ducting, and the effect is opposite
  • Wide Applications: made of quality metal and coated with corrosion proof material, the exhaust fans can be widely applied in bathrooms, kitchens, workshops, basements, garages, etc., boosting airflow in HVAC systems; Please keep the plugging area dry

8. VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements,

VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements,
9.5

Vivosun

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  • Durable: The fan has a strong motor which features a permanently lubricated bearing that operates quietly and requires no maintenance
  • Compact But Efficient: This duct fan is compact and lightweight enough to be installed in areas with little available space; With a diameter of 6 inches, speed of 2960 RPM and 240 CFM air flow
  • Low Noise: Superior balanced centrifugal impeller for long service life & quiet operation; A less than 37 dB noise level does not have any harm and will not disturb your work
  • Wide Applications: You can have it in bathrooms, kitchens, workshops, basements, attics and etc, in order to boost airflow in HVAC systems; Also, it can be used in grow rooms as intake fans or exhaust fan
  • Specifications: Voltage 110/120V, Power 37W; Max Operating Temp of Motor is 130 / 266; Max Ambient Temp is 60 / 140; Note: Please turn the fan off immediately if the blades get stuck by other objects

9. Hon&Guan 4 Inch Inline Booster Duct Fan with Speed Controller - 130 CFM Airflow with 6W Ultra-Low

Hon&Guan 4 Inch Inline Booster Duct Fan with Speed Controller - 130 CFM Airflow with 6W Ultra-Low
7.9

Hon&guan

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  • Energy-Efficient VentilationThis powerful inline duct fan speed of 4500 RPM can create the air flow of 130 CFM, Maximum power consumption is only 6W. Upgrade DC motor & low noise effectively circulating air, quickly move vast amount of air to exhaust odors.
  • Application ScenariosThe 4 inch duct booster fan designed to quietly ventilate grow rooms, bathrooms, kitchens, workshops, basements, attics and etc, in order to boost airflow in HVAC systems.
  • Easy to InstallHon&Guan air exhaust fan's blade and the body are made of high quality plastic, for quick removal and easy maintenance.
  • Adjustable Controller The 4-inch duct fan includes a variable speed controller, which can allows you to adjust the airflow and noise at will.
  • Excellent PerformanceDuct size: 4 | Dimensions: 7.28 x 3.82 x 3.82 in. | Voltage: 100-240V| Air Presssure: 165 Pa| Noise: 26 dBA

10. Hon&Guan 4 Inch Inline Duct Fan with Variable Speed Controller, Upgrade Motor & Low Noise

Hon&Guan 4 Inch Inline Duct Fan with Variable Speed Controller, Upgrade Motor & Low Noise
7.7

Hon&guan

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  • Easy to InstallHon&Guan mixed flow inline duct fan's blade and the body are made of high quality plastic. Quick removal and easy maintenance
  • Energy-Efficient VentilationThis powerful blower fan speed of 2200 RPM can create an air flow of 116 CFM. Upgrade motor & low noise effectively circulating air, quickly move vast amount of air to exhaust odors
  • Adjustable Controller The 4 inch duct fan includes a variable speed controller, which can adjust the air volume in ten steps, and the noise level is only 31 decibels even at the maximum air volume
  • High Quality MaterialDurable metal housing Ideal for long duct runs.Mixed flow design combined with a PWM-controlled motor, 4 inch radon fan suitable for air temperatures from -4 to 140.
  • Application ScenariosDesigned to quietly ventilate grow tents, transfer heating/cooling to rooms, circulate fresh air, cool AV closets, exhaust odors. The HF Mixed Flow Fan are the ideal solution for air exhaust systems for rooms with high humidity such as bathrooms and kitchen etc.

Peter

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