10 Best inline duct fans of 2025

Save up to 37% off

Best Choice

1

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

Key Features
Features 10-speed controller, energy-efficient PWM-controlled EC motor, and mixed flow design for optimal airflow in high resistance environments.

Ideal Use Cases
Perfect for ventilating grow tents, transferring room heating/cooling, circulating air, exhausting odors, and cooling AV racks.

Customer Praise
Most reviews highlight its quiet operation and energy efficiency as the product`s standout features.
Key specs
- wattage:38 watts
- blade material:Plastic
- control method:App
- power source:Corded Electric
- noise level:32 dB
9.9

Exceptional

Our Rating

9.7
Easy installation

9.5
worth the money

9.5
Temperature control
How do we rank?

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Value for Money

2

VEVOR

VEVOR Inline Duct Fan, 6-Inch 400 CFM with Variable Speed Controller, Quiet AC-motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics

25% Off
9.7

Exceptional

Our Rating

8.7
worth the money

8.4
Efficient Energy Use

8.2
Temperature control
3

Hon&Guan
Hon&Guan 6 Inch Inline Booster Duct Fan with Speed Controller - 345 CFM Airflow with 19.2W Ultra-Low Power and Low Noise
Main highlights

Energy-Efficient Ventilation
This inline duct fan delivers 345 CFM with just 19.2W power, ensuring low energy consumption while effectively circulating air.

Versatile Application Scenarios
Ideal for ventilating grow rooms, bathrooms, kitchens, and more, enhancing airflow in various settings.

Adjustable Airflow Feature
Praised for its adjustable speed controller, allowing users to tailor airflow and noise levels.
Key specs
- wattage:19.2
- blade material:N/A
- control method:App
- power source:ac
- noise level:32 dB
9.6

Exceptional

Our Rating

9.7
Easy installation

9.7
Temperature control

9.1
worth the money
4

VIVOSUN
VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver
Main highlights

Key Features
Quiet, maintenance-free 6-inch fan with strong motor and 240 CFM airflow. Compact, efficient, and operates below 37 dB noise level.

Ideal Use Cases
Perfect for bathrooms, kitchens, basements, attics, workshops, and HVAC systems. Great as intake or exhaust fan in grow rooms.

Customer Reviews
Most reviews highlight its quiet operation, reliability, and effectiveness in improving airflow in various settings.
Key specs
- wattage:37 watts
- control method:App
- power source:Corded Electric
- noise level:37 dB
- voltage:120 Volts
9.5

Excellent

Our Rating

9.9
lasts a long time

9.3
Easy installation

8.0
worth the money
5

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

37% Off
Main highlights

Powerful Airflow and Quiet Operation
Generates 195 CFM at 2500 RPM while maintaining a quiet 30 dB.

Ideal for Small Ventilation Projects
Perfect for grow tents, small rooms, and laser venting.

Praised for Quietness and Versatility
Customers appreciate its quiet performance and flexible usage.
9.4

Excellent

Our Rating

9.7
Light weight

9.1
Easy installation

8.0
worth the money
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6

AC Infinity
AC Infinity RAXIAL S6, Inline Booster Duct Fan 6” with Speed Controller - Low Noise Inline HVAC Blower Can Fan for Basements, Bathrooms, Kitchens, Workshops
Main highlights

Key Features and Benefits
Enhances airflow in HVAC systems with variable speed control, unibody die-cast construction for smooth operation, and efficient AC brushless motor.

Ideal Use Cases
Perfect for ventilating attics, workshops, and improving existing HVAC airflow, especially in spaces requiring consistent and adjustable air movement.

Customer Reviews Highlight
Most praised for its quiet operation at 35 dBA, with users appreciating the significant airflow improvement and easy installation process.
Key specs
- wattage:37 watts
- control method:App
- power source:AC
- noise level:35 dB
- voltage:120 Volts
9.3

Excellent

Our Rating

9.3
Easy installation

9.1
Efficient Energy Use

8.4
worth the money
7

Voltset

Voltset 4 Inch Duct Fan, Inline Ventilation Exhaust Fan, 280 CFM Duct Intake High Efficiency Air Fan for Vent Bathroom, Kitchen, Grow Tent, Hydroponics, 3D Printer
9.2

Excellent

Our Rating
8

Simple Deluxe

Simple Deluxe 4 Inch Inline Duct Fan, 195 CFM Ventilation Fan, Exhaust HVAC Vent Blower for Hydroponics, Grow Tent, Basements, Greenhouses, Attic, Black

20% Off
8.9

Very Good

Our Rating
9

iPower

iPower 4 Inch Inline Booster Duct Fan 100 CFM HVAC Exhaust Ventilation Blower with Low Noise for Grow Tent, Basements, Bathrooms, Kitchens and Attics
8.8

Very Good

Our Rating

9.9
Easy installation

8.4
Noise level

8.0
Vacuum strength
10

VIVOSUN

VIVOSUN 4” Inline Booster Duct Fan with Speed Regulator, 130 CFM Quiet Exhaust Fan for HVAC Ventilation in Grow Tents, Basements, Bathrooms, Kitchens, and Attics
8.5

Good

Our Rating

10 Best inline duct fans of 2025

1

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

9.7

9.5

9.5

How do we rank?

How do we rank?

Analyzing top stores

2

VEVOR Inline Duct Fan, 6-Inch 400 CFM with Variable Speed Controller, Quiet AC-motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics

8.7

8.4

8.2

3

Hon&Guan 6 Inch Inline Booster Duct Fan with Speed Controller - 345 CFM Airflow with 19.2W Ultra-Low Power and Low Noise

9.7

9.7

9.1

4

VIVOSUN 6 Inch Inline Duct Fan 240 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver

9.9

9.3

8.0

5

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

9.7

9.1

8.0

6

AC Infinity RAXIAL S6, Inline Booster Duct Fan 6” with Speed Controller - Low Noise Inline HVAC Blower Can Fan for Basements, Bathrooms, Kitchens, Workshops

9.3

9.1

8.4

7

Voltset 4 Inch Duct Fan, Inline Ventilation Exhaust Fan, 280 CFM Duct Intake High Efficiency Air Fan for Vent Bathroom, Kitchen, Grow Tent, Hydroponics, 3D Printer

8

Simple Deluxe 4 Inch Inline Duct Fan, 195 CFM Ventilation Fan, Exhaust HVAC Vent Blower for Hydroponics, Grow Tent, Basements, Greenhouses, Attic, Black

9

iPower 4 Inch Inline Booster Duct Fan 100 CFM HVAC Exhaust Ventilation Blower with Low Noise for Grow Tent, Basements, Bathrooms, Kitchens and Attics

9.9

8.4

8.0

10

VIVOSUN 4” Inline Booster Duct Fan with Speed Regulator, 130 CFM Quiet Exhaust Fan for HVAC Ventilation in Grow Tents, Basements, Bathrooms, Kitchens, and Attics

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