Search  for anything...
VIVOSUN

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 539 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$27.99 Why this price?
Save $12.00 was $39.99

Buy Now, Pay Later

As low as $6 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Unavailable
Fulfilled by Amazon
Available payment plans shown during checkout

Recently Viewed

Style: Adjustable Speed


Size: 4”


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: Adjustable Speed


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


Mounting Type: Ceiling Mount


Power Source: Corded Electric


Room Type: Bathroom


Special Features: Low Noise


Recommended Uses For Product: Exhausting


Mounting Type: Ceiling Mount


Controller Type: Button Control


Number of Speeds: 2


Noise Level: 28 Decibels


Wattage: 14 watts


Air Flow Capacity: 106 Cubic Feet Per Minute


Speed: 2990 RPM


Indoor Outdoor Usage: Indoor


Control Method: App


Standby Power Shutoff: [INF]


Is Product Cordless: No


Number of Power Levels: 2


Material: Metal


Blade Material: Plastic


Specification Met: HVAC


Color: Black


Electric Fan Design: Exhaust Fan


Style: Adjustable Speed


Finish Type: Metallic


Collection Name: Duct Fans


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


Blade Length: 4 Inches


Brand Name: VIVOSUN


Included Components: Inline Duct Fan with Speed Controller


Model Name: VSV-IFB4


Model Number: VSV-IFB4


Manufacturer: VIVOSUN


Item Type Name: Inline Duct Fan with Speed Controller


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • This Is worth it in every aspect
Size: 4 Inch
This exhaust fan works great. I have had it and tested it for over a month now. It is very quiet, I wish bathroom motors were this quiet, next the power dial also controls the speed of the fan. the fan speed is completely adjustable this is a HUGE bonus. Most air duct exhaust fans are either on or off, this one has fan speed control. It hooks up pretty easy the length of the cord is about 6 feet which is good. The on off switch is the dial, so the only negative is the switch position. I wish the switch was closer to the outlet and further away from the actual inline booster module. ... show more
Reviewed in the United States on October 16, 2023 by The Lopez Family
    • Perfect solution for my needs - but maybe not everyone's
Size: 4 Inch
I have an 800 cfm squirrel cage style blower in my brewery above a pilot system to evacuate heat and steam. The motor can't be exposed to the moisture, so I ducted it through a 4" diameter down-pipe ending a foot above the floor to pull cooler air into the motor. That down pipe proved to be too restrictive to provide enough air to keep the motor from thermal-tripping, so I added this small blower to the down-pipe, and it has made all the difference needed. Where I had been experiencing a couple of motor shutdowns due to overheating on most brewing days, I haven't had any since installing this blower. All that related, this little fan moves just enough air to suffice my needs - it isn't going to impress anyone with the volume it moves. But for an application that doesn't need a lot of air movement, this could work. Cheers! ... show more
Reviewed in the United States on November 13, 2024 by day_tripper
    • Efficient
Size: 6 Inch
Fan serves the purpose of pushing cold air to my two tents connected with a T and 2 back daft vents. Allows cold air to go in at a controlled pace while leaving this set to medium. Perfect for a budget build. Will be adding the larger fan for an upgraded intake. And using this as an extra inline exhaust fan. To really push the air out of the area since I’ll be joining to Exhaust fans to one with a y and add this at the end. After a month I have no complaints. ... show more
Reviewed in the United States on September 4, 2024 by Martin A Perez Lopez
    • Excellent for smoking room
Size: 8 Inch
Bought this to add to a window to exhaust the smoke from a smoking room. 100% perfect. Best part is the noise is low and not the type that gives you a headache. The adjustability helps too when more people show. Definitely a good buy.
Reviewed in the United States on December 25, 2024 by Donald R
    • The fan operation is not as described, the unit is defective.
Size: 4 Inch
The media could not be loaded. The first fan ordered did not work as it should - when turning the controller knob, there is a humming noise like a voltage transformer and the blades hardly move. Then suddenly in some position the fan turns on at full power and makes quite a lot of noise, about 28 decibels - it's nothing. Turning the regulator knob to maximum turns the fan off. I thought I had gotten a defective fan and decided to replace it with another one of the same kind, so to speak, to give the company a chance. However, the second one has exactly the same problem. Too bad, the window insert for the 4” vent from this company is quality, no complaints. ... show more
Reviewed in the United States on January 21, 2025 by Dmitry Kutsovsky
    • Decent fan but not great.
Size: 4 Inch
Overall it does its intended purpose. But I feel like it doesnt move as much air as I would have thought. Also the adjuster knob barely adjusts. The difference between barely on and full blast is pretty negligible.
Reviewed in the United States on March 18, 2025 by That reviewer!
    • Well made and a good value
Size: 8 Inch
Well made and a good value for the money. I will be using it to ventilate an unheated crawlspace so I got the 8 inch model. It will move a lot of air.
Reviewed in the United States on February 7, 2025 by Alex Miller
    • It fits inside a 4"PVC pipe.
Size: 4 Inch
Just what I wanted.
Reviewed in the United States on March 10, 2025 by Lao Shi Art

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...