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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 45 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Sep 6
Order within 11 hours and 31 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


Best Sellers Rank: #37,662 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #32 in Greenhouse Ventilation Equipment


#32 in Greenhouse Ventilation Equipment:


Customer Reviews: 4.7 4.7 out of 5 stars 45 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 6

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


  • Good fan for a small ice box
Pretty good fan. Not very loud. I bought it to use for an ice box and it works perfectly for that. Good air flow. Don’t have to turn the speed up very high to keep the box cool. Haven’t had any issues with any of the shoes I’ve put in there yet. Would definitely recommend this fan for that purpose.
Reviewed in the United States on July 19, 2025 by Jeremy

  • 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

  • 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

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

  • Works perfect
Works perfect
Reviewed in the United States on July 18, 2025 by Cynthia Thomas

  • Best 4-inch inline on the market
This fan is more than enough as an intake for my 3x3 tent. When set to 100%, my tent swells with air pressure unless I turn my exhaust fan to 100%, and even then, the intake still outpaces the exhaust. Under normal conditions, this only needs to run at about 30% for my needs, and I'm thankful for the ability to adjust. It's reasonably quiet (not being used in a regularly-used room), solidly built, super easy to use and setup, and, at under $35 at the time of writing, I don't think there is a better deal out there. I highly recommend! ... show more
Reviewed in the United States on June 17, 2025 by Corbin

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

  • 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.

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