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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

  • Based on 29 reviews
Condition: New
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Availability: In Stock.
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Arrives Tuesday, Jul 15
Order within 18 hours and 50 minutes
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Features

  • 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
  • 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
  • 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
  • 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

Brand: VIVOSUN


Power Connector Type: Power Cord (Plug)


Voltage: 110 Volts


Wattage: 18 watts


Cooling Method: forced air


Maximum Rotational Speed: 2800 RPM


Air Flow Capacity: 195 Cubic Feet Per Minute


Manufacturer: VIVOSUN


Product Dimensions ‏ : ‎ 9.45 x 8.46 x 7.8 inches; 2.54 Pounds


Item model number ‏ : ‎ VSV-IFM4


Date First Available ‏ : ‎ September 9, 2024


Manufacturer ‏ : ‎ VIVOSUN


Country of Origin ‏ : ‎ China


Best Sellers Rank: #41,872 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #31 in Greenhouse Ventilation Equipment


#31 in Greenhouse Ventilation Equipment:


Customer Reviews: 4.6 4.6 out of 5 stars 29 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Works for airbrush paint booths
This is a really good fan to use for my homemade airbrush paint booth. Coupled with a dryer lint trap, it works like a charm. It moves a lot of air. I will say that the fan is a bit loud, but the acoustics of the box are likely amplifying it. Other than that, it's a great fan with a built-in speed controller. ... show more
Reviewed in the United States on May 25, 2025 by Matthew Matthew

  • Two big booms
While it isn’t the quietist it gets the job done and the adjustable speed has good range
Reviewed in the United States on May 30, 2025 by TheGYoTurtl

  • Great at exhausting hot air!
Works great for exhausting the heat from our gazebo!
Reviewed in the United States on May 31, 2025 by MikeT. MikeT.

  • Loud
Louder than I wanted.
Reviewed in the United States on March 22, 2025 by Charlie B.

  • Good
Good
Reviewed in the United States on May 12, 2025 by Amazon Customer

  • Cool Garage!!!
The media could not be loaded. I bought this to mount in my garage on the roof to suck the hot air out of my garage. All the heat gets trapped at the top and makes it really hot when I’m trying to work in there. The installation was simple, I just screwed it in with the two holes on each side of the fan. I hardwired it to a switch in my garage to turn it on and off, then i connected a vent hose to let the hot air travel out of the garage. It’s very quiet and powerful enough for what i needed it for. It’s pretty light but feels extremely durable. Very happy with the purchase and I highly recommend it for small things like this! ... show more
Reviewed in the United States on May 18, 2025 by Chaz A Chaz A

  • Recommended
Great fan
Reviewed in the United States on May 9, 2025 by Preston Wolf

  • Noisier than expected. Buy the D4 instead
The media could not be loaded. No problem with seller, but this Vivosun M4 fan is a bit noisy. So I bought a Viviosun D4 fan and compared them side by side. The single speed fan was 6 db quieter. The variable speed fan sounds like its out of balance. I am using the D4 fan as a Radon pump. It pulled the radon level down from 11.2 pCi/L to 1.5 pCi/l. No point spending $350 for an official radon pump when this will do the same thing. ... show more
Reviewed in the United States on April 7, 2025 by R George R George

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