If you want to improve your home’s heating and cooling system, you might have considered an inline duct fan.

For many people, an inline fan serves a huge purpose, as it helps to circulate fresh air while giving heating and cooling a bit of a boost.

we’ve put together a collection of the best Inline Vent Fans that are currently available on the market. To help you find the perfect Inline Vent Fan among a wide variety of options, we constantly update our collection with new and trending models.

10 Best Inline Vent Fans

Based on dozens of customer reviews and ratings, the followings are the top 10 best-selling Inline Vent Fans:

# Preview Product Price
1 AC Infinity CLOUDLINE S4, Quiet 4” Inline Duct Fan with Speed Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics AC Infinity CLOUDLINE S4, Quiet 4” Inline Duct Fan with Speed Controller – Ventilation Exhaust Fan… $99.00 View Product
2 AC Infinity CLOUDLINE S6, Quiet 6” Inline Duct Fan with Speed Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics AC Infinity CLOUDLINE S6, Quiet 6” Inline Duct Fan with Speed Controller – Ventilation Exhaust Fan… $119.00 View Product
3 AC Infinity RAXIAL S4, Inline Booster Duct Fan 4” with Speed Controller - Low Noise Inline HVAC Blower Can Fan for Basements, Bathrooms, Kitchens, Workshops AC Infinity RAXIAL S4, Inline Booster Duct Fan 4” with Speed Controller – Low Noise Inline HVAC… $27.99 View Product
4 AC Infinity CLOUDLINE T8, Quiet 8” Inline Duct Fan with Temperature Humidity Controller, Bluetooth App - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics AC Infinity CLOUDLINE T8, Quiet 8” Inline Duct Fan with Temperature Humidity Controller, Bluetooth… $219.00 View Product
5 Tjernlund M-6 Inline Duct Booster Fan, Hydroponic Blower Heat Air Conditioning Vent Exhaust, 460 CFM, 6' Tjernlund M-6 Inline Duct Booster Fan, Hydroponic Blower Heat Air Conditioning Vent Exhaust, 460… $84.24 View Product
6 AC Infinity CLOUDLINE T6, Quiet 6” Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics AC Infinity CLOUDLINE T6, Quiet 6” Inline Duct Fan with Temperature Humidity Controller -… $149.00 View Product
7 VIVOSUN 4 Inch 195 CFM Inline Duct Ventilation Fan Vent Blower for Grow Tent VIVOSUN 4 Inch 195 CFM Inline Duct Ventilation Fan Vent Blower for Grow Tent $30.99 View Product
8 AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Temperature Humidity Controller -… $119.00 View Product
9 VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Intake Fan, Low Noise & Extra Long 5.5' Grounded Power Cord VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Intake Fan, Low Noise & Extra Long 5.5’… $28.59 View Product
10 VIVOSUN 4 Inch 190 CFM Inline Fan with Speed Controller, 4 Inch Carbon Filter and 8 Feet of Ducting, Temperature Humidity Monitor for Grow Tent Ventilation VIVOSUN 4 Inch 190 CFM Inline Fan with Speed Controller, 4 Inch Carbon Filter and 8 Feet of Ducting,… $99.99 View Product

Top Rated Inline Vent Fan Reviews

Since we’ve mentioned 10 different models of Inline Vent Fans on the above list, it may be difficult for you to find the right one for your needs. This is why we listed the key features of each of these Inline Vent Fans below:

1

AC Infinity CLOUDLINE S4, Quiet 4” Inline Duct Fan with Speed Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
AC Infinity CLOUDLINE S4, Quiet 4” Inline Duct Fan with Speed Controller – Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

$99.00
View Product
Product Highlights:

  • Designed to ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks.
  • Features an 8-speed manual controller utilizing PWM. See T-Series for temperature and humidity controls.
  • Mixed flow design combined with an EC-powered motor for a truly quiet and energy efficient performance.
  • Kit also includes corded AC power adapter, installation manual, and all necessary mounting hardware.
  • Duct Size: 4” | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 205 CFM | Noise: 28 dBA | Bearings: Dual Ball
2

AC Infinity CLOUDLINE S6, Quiet 6” Inline Duct Fan with Speed Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
AC Infinity CLOUDLINE S6, Quiet 6” Inline Duct Fan with Speed Controller – Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

$119.00
View Product
Product Highlights:

  • Designed to ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks.
  • Features an 8-speed manual controller utilizing PWM. See T-Series for temperature and humidity controls.
  • Mixed flow design combined with an EC-powered motor for a truly quiet and energy efficient performance.
  • Kit also includes corded AC power adapter, installation manual, and all necessary mounting hardware.
  • Duct Size: 6” | Dimensions: 7.9 x 12.6 x 8.4 in. | Airflow: 402 CFM | Noise: 32 dBA | Bearings: Dual Ball
3

AC Infinity RAXIAL S4, Inline Booster Duct Fan 4” with Speed Controller - Low Noise Inline HVAC Blower Can Fan for Basements, Bathrooms, Kitchens, Workshops
AC Infinity RAXIAL S4, Inline Booster Duct Fan 4” with Speed Controller – Low Noise Inline HVAC Blower Can Fan for Basements, Bathrooms, Kitchens, Workshops

$27.99
View Product
Product Highlights:

  • 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
4

AC Infinity CLOUDLINE T8, Quiet 8” Inline Duct Fan with Temperature Humidity Controller, Bluetooth App - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
AC Infinity CLOUDLINE T8, Quiet 8” Inline Duct Fan with Temperature Humidity Controller, Bluetooth App – Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

$219.00
View Product
Product Highlights:

  • Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool AV closets, and exhaust odors.
  • Dynamic temperature and humidity programming, with timers, grow cycles, scheduling, minimum speed.
  • Connect with our app via Bluetooth to access advance programs, alarms, notifications, and view climate data.
  • Mixed flow design combined with a PWM-controlled EC-motor for a truly quiet and energy efficient performance.
  • Duct Size: 8” | Dimensions: 8.5 x 11.9 x 9.2 in. | Airflow: 807 CFM | Noise: 39 dBA | Bearings: Dual Ball
5

Tjernlund M-6 Inline Duct Booster Fan, Hydroponic Blower Heat Air Conditioning Vent Exhaust, 460 CFM, 6'
Tjernlund M-6 Inline Duct Booster Fan, Hydroponic Blower Heat Air Conditioning Vent Exhaust, 460 CFM, 6″

$84.24
View Product
Product Highlights:

  • 6 Inches, 460 CFM
  • Includes mounting brackets and hardware
  • Great for exhausting high-moisture areas
  • Low noise and power usage
  • Fan is speed controllable, (speed control device not included)
6

AC Infinity CLOUDLINE T6, Quiet 6” Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
AC Infinity CLOUDLINE T6, Quiet 6” Inline Duct Fan with Temperature Humidity Controller – Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

$149.00
View Product
Product Highlights:

  • Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool AV closets, and exhaust odors.
  • Intelligent controller with temperature and humidity programming, fan speed control, timer, and alarm system.
  • Mixed flow design combined with a PWM-controlled EC-motor for a truly quiet and energy efficient performance.
  • Kit also includes corded sensor probe, AC power plug, two duct clamps, and required mounting hardware.
  • Duct Size: 6” | Dimensions: 7.9 x 12.6 x 8.4 in. | Airflow: 402 CFM | Noise: 32 dBA | Bearings: Dual Ball
7

VIVOSUN 4 Inch 195 CFM Inline Duct Ventilation Fan Vent Blower for Grow Tent
VIVOSUN 4 Inch 195 CFM Inline Duct Ventilation Fan Vent Blower for Grow Tent

$30.99
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Product Highlights:

  • 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)
8

AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics
AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Temperature Humidity Controller – Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

$119.00
View Product
Product Highlights:

  • Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool AV closets, and exhaust odors.
  • Intelligent controller with temperature and humidity programming, fan speed control, timer, and alarm system.
  • Mixed flow design combined with a PWM-controlled DC or EC-motor for a truly quiet and energy efficient performance.
  • Kit also includes corded sensor probe, AC power plug, two duct clamps, and required mounting hardware.
  • Duct Size: 4” | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 205 CFM | Noise: 28 dBA | Bearings: Dual Ball
Sale9

VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Intake Fan, Low Noise & Extra Long 5.5' Grounded Power Cord
VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Intake Fan, Low Noise & Extra Long 5.5′ Grounded Power Cord

$28.59
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Product Highlights:

  • Spec: Diameter 6 inch, Speed 2960 RPM, Air Flow 240 CFM, Voltage 110/120V, Power 37W
  • Upgraded Advantages: Superior balanced blades for long service life & quiet operation; Motor features a permanently lubricated bearing that operates quietly and requires no maintenance; Portable lightweight; Sufficient 5.5′ grounded power cord
  • Household Application: Help to boost the airflow from HVAC units to remote registers, exhaust smelliness in bathrooms & workshops, ventilate stale air in basements & attics
  • Grow Room Application: Used as intake fan to bring fresh air to grow rooms; Can be used as an exhaust fan in smaller setups with LEDs or Lights under 400W
  • Note: Max Operating Temp of Motor is 130℃ / 266℉; Max Ambient Temp is 60℃ / 140℉
Sale10

VIVOSUN 4 Inch 190 CFM Inline Fan with Speed Controller, 4 Inch Carbon Filter and 8 Feet of Ducting, Temperature Humidity Monitor for Grow Tent Ventilation
VIVOSUN 4 Inch 190 CFM Inline Fan with Speed Controller, 4 Inch Carbon Filter and 8 Feet of Ducting, Temperature Humidity Monitor for Grow Tent Ventilation

$99.99
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Product Highlights:

  • Effective Ventilation: Powerful blower with a fan speed of 2300 RPM for an air flow of 190 CFM; Moves air through your target location efficiently for optimal ventilation
  • Superior Carbon Filter: 1050+ RC 48 Australian Virgin Charcoal Bed; Dimensions: 4″ x 14″
  • Effective Smelliness Control: The carbon filter eliminates some of the most undesirable smelliness, pungent smell and particulates from indoor grow tent, hydroponics grow room
  • Sturdy Ducting+ 2 Stainless Clamps: Strong, flexible steel wire supports heavy duty triple layer duct walls; PET core is sandwiched in layers of fire-retardant aluminum that can handle temperatures from -22 to 266 Fahrenheit
  • Ultra Reliable & Accurate Thermometer & Hygrometer: are able to quickly report measurements every 10 seconds and has a wide measurement range of 14℉ to 122℉（-10℃~50℃), with a temperature accuracy range of around ±0.1℉ (±0.1℃); Humidity sensor measures humidity from 10% to 99%, humidity accuracy range around ±5%

Video Overview

What items do I need to install an inline fan in my bathroom?

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In this video we will be looking at all the items needed to install an inline fan. Turbo Tube Pro 100 4 Inch Inline Fan with Timer: …

Final Words

So, these are all of the Best Inline Vent Fans available on the market. We hope this collection was helpful to find the right Inline Vent Fan for the money. However, we recommend checking out the features, benefits, and problems of each of these Inline Vent Fans before taking your decision.