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VIVOSUN Inline Booster Duct Fan 4” 106 CFM with Speed Controller, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens, Attics, Grow Tents

  • Based on 373 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Mar 5
Order within 4 hours and 49 minutes
Available payment plans shown during checkout

Size: 4 Inch


Features

  • Durable: The fan has a strong motor which features a permanently lubricated bearing that operates quietly and requires no maintenance; The quality steel housing makes it sturdy and built to last
  • Adjustable Speed: A variable speed controller on the power cord enables the fan to run at different speeds; With this speed switch, you can adjust it to the desired airflow level
  • Compact But Efficient: This duct fan is compact and lightweight enough to be installed in areas with little available space; With a diameter of 4 inches, speed of 2990 RPM and 106 CFM airflow
  • Low Noise: Superior balanced centrifugal impeller for long service life & quiet operation; A less than 28 dB noise level does not have any harm and will not disturb your life
  • Wide Applications: You can have it in bathrooms, kitchens, workshops, basements, attics and etc, in order to boost airflow in HVAC systems; Also, it can be used in grow rooms as intake fans or exhaust fan
  • To maintain optimal performance of the exhaust fan, clean the fan after the first week of use with the carbon filter connected, and then clean regularly based on usage conditions

Brand: VIVOSUN


Color: Black


Electric fan design: Exhaust Fan


Power Source: Corded Electric


Style: Modern


Product Dimensions: 3.9"D x 3.9"W x 5.9"H


Room Type: Bathroom


Special Feature: Low Noise


Recommended Uses For Product: Exhausting


Noise Level: 28 dB


Blade Length: 4 Inches


Item Dimensions D x W x H: 3.9"D x 3.9"W x 5.9"H


Finish Types: Metallic


Collection Name: Ventilation Fans


Theme: Home Ventilation


Electric Fan Design: Exhaust Fan


Style Name: Modern


Color: Black


Blade Material: Plastic


Material Type: Alloy Steel


Specification Met: HVAC


Model: VSV-IFB4


Brand Name: VIVOSUN


Built-In Media: Inline Duct Fan with Speed Controller


Model Name: VSV-IFB4


Switch Type: Push Button


Indoor Outdoor Usage: Indoor


Control Method: App


Efficiency: [INF]


Is Product Cordless: No


Is Electric: Yes


Number of Speeds: 2


Noise Level: 28 dB


Power Source: Corded Electric


Room Type: Bathroom


Additional Features: Low Noise


Recommended Uses For Product: Exhausting


Mounting Type: Ceiling Mount


Controller Type: Button Control


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Mar 5

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


  • Duct fan helps warm my shop.
Size: 8 Inch
I ordered a eight inch duct fan to help heat my shop. My shop is an added on single garage to the double garage of our house. The double garage is heated but my single garage is not so l cut an eight inch hole in the wall between the two and installed the fan as close to the ceiling as possible to capture the warm air in the heated garage and blow it into the shop. The fan came with a speed control which really was a plus. It works great but is a little noisy. ... show more
Reviewed in the United States on April 18, 2024 by James Hulke

  • Nice and sturdy
Size: 4 Inch
Very small and very quiet. Does not push a ton of air but I think that is because of the size. It pushes enough for what I am using it for. Quality is excellent with a black coating that will not rust.
Reviewed in the United States on August 15, 2024 by Guy Wetzel

  • Works ok...
Size: 4 Inch
The fan works ok its fairly quiet got the combo kit with vent tube and bought a carbon fiber filter trying to save money, now wishing i would have spent the money as its not moving quite enough air out of my 2x2 tent. Over all im not in a loss but will have to buy something else if i upgrade.
Reviewed in the United States on September 16, 2024 by Nathan Sedlacek

  • For the price price it’s solida
Size: 4 Inch
I live in a high moisture state so I have very high humidity and I have a small tent that’s about 3 x 2 1/2 x 5 1/2‘ and this little fan was not enough to completely manage this tent, but it did cool the tent off by itself Wasn’t strong enough so I ended up buying a viva sun in-line fan instead of returning this little fan I kept it and now I use it as a nonpassive when needed and that it works perfectly it’s light so I literally installed it directly in the vent of the temp since I have two clamping sites on the temp and hold it perfect and That’s it 2426 bucks totally worth it, but I would say don’t think it will be your final solution if you live in a humid climate ... show more
Reviewed in the United States on July 30, 2024 by Oceee

  • Quiet but not very powerful
Size: 4 Inch
This reminds me of a vent hood that supposedly moved over 400 cuft per minute. This one advertises 110 cuft/min, I believe, and it may achieve that in "high" setting. But for a device that uses only 14W, the throughput is good. I may just need 1 or 2 more of them. The low/medium/high switch.. I think there are just 2 speeds. Slow and fast. Ok for me. I have it on max for now anyways. UPDATE: it's just too weak. Will try to return it. ... show more
Reviewed in the United States on February 23, 2024 by Pierre

  • It’s quiet
Size: 4 Inch
Too quiet to the point it’s not that powerful. It’s like a small breeze. I used it for AC airflow could be better but it’s the same hardly felt a difference. For a small tent maybe no more then 2x2x4.
Reviewed in the United States on June 24, 2024 by Miguel Angel Valadez

  • Perfect
Size: 6 Inch
Needed a boost for our ac system and this works perfectly
Reviewed in the United States on September 23, 2024 by Tamra McGillicuddy

  • Quiet, great little fan
Size: 4 Inch
I bought this to supplement my Xtool laser. I increased the duct size, and added this fan, and its a great combo to exhaust the fumes. VERY quiet. I have no way to confirm the CFM, but it seems to move some airflow.
Reviewed in the United States on June 17, 2024 by Jordan

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