Advertising Disclosure

Best quiet inline fan 4 inches - Holiday Sale 2025

Last Updated - December 14, 2025

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

AC Infinity

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

AC Infinity

$89.99

More Details
Main highlights
- PWM-controlled EC motor provides quiet and energy-efficient performance with minimal heat and noise.
- Mixed flow design with stator blade and hydrodynamic wind circles enables airflow delivery in high resistance areas.
- Features a wired 10-speed fan controller; also compatible with all UIS controllers with intelligent programming.
- Duct Size: 4” | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 205 CFM | Noise: 28 dBA | Bearings: Dual Ball
- Designed to ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks.
$89.99
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

AC Infinity

AC Infinity CLOUDLINE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

AC Infinity

$79.99

More Details
Main highlights
- Mixed flow design combined with an EC-powered motor for a truly quiet and energy efficient performance.
- Includes a wired 10-speed fan controller; also compatible with all CLOUDLINE Series smart controllers.
- Features the same build quality and innovations as the CLOUDLINE Series delivered in a value package.
- Duct Size: 4” | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 165 CFM | Noise: 29 dBA | Bearings: Dual Ball
- Designed to quietly ventilate grow tents, exhaust odors, transfer heating/cooling to rooms, and cool AV closets.
$79.99
3
10% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Voltset
10% Off

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

Voltset

$44.99

$49.99
(10% Off)

More Details
Main highlights
- Widely Applicable: Ideal for both commercial and residential use, perfect for grow tents, planting rooms, HVAC systems, bathroom ventilation, and more.
- Note: Higher wattage results in stronger wind force and increased noise levels.
- Multi-Purpose Duct Fan: Functions as both an intake fan to bring in fresh air and an exhaust fan to remove indoor gases, ensuring comprehensive ventilation and air circulation.
- High-Efficiency Inline Duct Fan: Equipped with a powerful 2200 RPM motor and operating at less than 30 dB, this fan quickly improves indoor air quality while maintaining a quiet environment.
- Easy to Install: Made from high-quality hard plastic, the fan features a sturdy structure for long-term stability. Includes a switch metal ring for easy duct installation.
- Customer Service: Voltset offers a one-year warranty and 24-hour professional customer service. Contact us anytime with your questions or concerns.
$44.99
$49.99 (10% Off)
4
Best Value
17% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

VEVOR
17% Off

VEVOR Inline Duct Fan, 4-Inch 200 CFM with Variable Speed Controller, Quiet AC-Motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics

VEVOR

$47.90

$57.99
(17% Off)

More Details
Main highlights
- 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.
- 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 29 dB, which will not disturb your work and life. At the same time, the motor saves 30% on energy consumption, extending its service life.
- Everything You Need: To save time and cut costs dramatically, we provide a 4-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.
- 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!
- Blow Your Worries Away: Our inline fan provides a sufficient airflow of 200 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.
$47.90
$57.99 (17% Off)
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

VIVOSUN

VIVOSUN M4 4-Inch Inline Duct Fan, 195 CFM Ventilation Fan with EC Motor, Adjustable Speed, Energy-efficient Vent Blower for HVAC, Grow Tent, Hydroponics

VIVOSUN

$41.99

More Details
Main highlights
- Versatile Applications: Efficiently exhausts stale air, supplies fresh air, and boosts airflow to balance humidity, regulate temperature, and improve air quality in grow tents, grow rooms, basements, or other spaces
- Simple Hookup:Intake and exhaust flanges with locking tabs make vent hose connections quick and secure; The 5.9 ft cord provides flexible setup; The detachable housing, impeller, and blade simplify cleaning and maintenance
- Safety Protection: The ETL-listed EC motor includes an automatic reset function to prevent overheating and ensure safety; With locked-rotor protection, the fan cuts off power and resets automatically if the blades are blocked; The flame-retardant electrical junction box enhances fireproofing
- Efficient and Quiet Ventilation: The PWM-controlled EC motor and mixed-flow design deliver powerful, quiet, and energy-efficient performance; Operating at 2800 RPM, this fan generates 195 CFM of airflow with low energy use and a noise level of just 28 dB
- Adjustable Fan Speed: PWM control enables precise and easy speed adjustment to suit your needs; Simply turn the knob to select from three speed levels and set the fan to your desired speed effortlessly
$41.99

Best quiet inline fan 4 inches - Holiday Sale 2025

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

AC Infinity CLOUDLINE A4, Quiet 4” Inline Duct Fan with Speed Controller, EC Motor - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

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

VEVOR Inline Duct Fan, 4-Inch 200 CFM with Variable Speed Controller, Quiet AC-Motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics

VIVOSUN M4 4-Inch Inline Duct Fan, 195 CFM Ventilation Fan with EC Motor, Adjustable Speed, Energy-efficient Vent Blower for HVAC, Grow Tent, Hydroponics

You may also like...

VIVOSUN G4 4" Inline Duct Fan & 3 Cycle Modes E12 Speed Controller, AeroZesh Grow Tent Kit Ventilation Fan with 195 CFM EC Motor, Programmable Exhaust Fan for Heating Cooling Booster, Hydroponics

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

VEVOR Inline Duct Fan, 4-Inch 205 CFM Quiet EC-Motor Ventilation Exhaust Fan, with Temperature Humidity Controller for Cooling Booster, Grow Tents, Hydroponics

Toolazy Quiet 4" Inline Duct Fan 214 CFM Ventilation Exhaust Fan EC Motor and External 0-100% Variable Speed Controller for Heating Cooling Booster, Grow Tents, Hydroponics

Toolazy Quiet 4" Inline Duct Fan 214 CFM Ventilation Exhaust Fan EC Motor and External Electronic 10-speed Controller for Heating Cooling Booster, Grow Tents, Hydroponics

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

ONVEAN 4 Inch Inline Duct Fan with Speed Controller, Upgraded Inline Fans High-Efficiency Exhaust Duct Fan, Low Noise HVAC Ventilation in Basement Bathroom Workshop Attic Grow Tent

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

VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan, HVAC Vent Blower for Grow Tent, Attic, Basements or Kitchen, Hydroponics Exhaust Booster Fan

Hon&Guan 4 Inch Inline Duct Fan with Upgrade Controller - 130 CFM Airflow with 6W Ultra-Low Power and Low Noise

Sign up and get exclusive special deals