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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

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$27.99

$ 14 .99 $14.99

In Stock

1.Size:4 Inch


About this item

  • 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



4.2 out of 5 stars Best Sellers Rank
  • #16,125 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • #8 in Hydroponic Ventilation Equipment
Date First Available February 14, 2023

Product Description

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Arthur Simpson
Reviewed in the United States on March 10, 2025
Just what I wanted.
Alex Miller
Reviewed in the United States on February 7, 2025
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.
Rolande
Reviewed in Canada on January 25, 2025
This product is noisier than I had hoped. It does not move air as well as I need. But I am still experimenting with it. The price was good and it's well built. Next day.......I made some installation adjustments, tucked in some insulation and then the noise level went down and the air movement increased. So, I'm happy. Thanks
Dmitry Kutsovsky
Reviewed in the United States on January 21, 2025
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Martin A Perez Lopez
Reviewed in the United States on September 4, 2024
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.
Trevor
Reviewed in Canada on June 17, 2024
Good, it's not exactly silent but the sound is comparable to an air conditioner. It is a consistent and mellow hum that is easy to tune out after a while. I'm really impressed with the build quality and power of this thing. I'm using it in a grow tent and it works great. You will need to place some sort of filter or mesh over the intake side if you don't use it as an inline fan, otherwise it's wide open and dangerous. Not a problem.
Aníbal
Reviewed in Mexico on February 29, 2024
Se ve y se siente la calidad en los materiales, hace muy poco ruido a maxima potencia aunque me hubiera gustado que tuviera más potencia pero cumple.
Donald R
Reviewed in the United States on December 25, 2024
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.
day_tripper
Reviewed in the United States on November 13, 2024
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!
Customer
Reviewed in the United States on October 15, 2024
The fan looks good, fits great, and works. However the speed adjustment does very little to adjust the fan speed. It clicks on to "low" and when turned up just a bit the fan gets faster. But, just above "low" all the way to "hi" the adjustment doesn't do anything, the fan stays the same speed. So, it basically has two speeds, low and hi. It's just a booster fan so I expect I'll always have it on "hi" but I expected a little better adjustment.
CDMX420sur
Reviewed in Mexico on April 12, 2024
A mi me funciona como "inyector" de aire a la carpa y complemento con un extractor en la parte superior.Funciona mejor para ventilar y no para extraer. Ventajas es que tiene 2 niveles de operación, es ligero y puedes colgarlo. Puede adaptarse un tubo e inyectar aire a la carpa o puedes ponerlo directo en la entrada de la carpa si tienes las entradas con el tamaño adecuado. Fíjate bien antes de comprar que diámetro tienen tus entradas de aire. Estaría muy bien que incluyeran algún tipo de colgante o abrazaderas. Por lo demás cumple
Craig Sigurdson
Reviewed in Canada on November 27, 2023
This motor was quiet and appeared to be well made. The speed controller worked well at all speeds. The only obvious negative was that the diameter is slightly less than the 4” stated. This may call for extra fabrication for ductwork in some cases. The unit has metal blades and housing that seem sturdy but lightweight. I am using it to provide negative ventilation for a CNC machine housing, so perfect for a modest air flow to keep fumes out of adjoining living area. I would probably by this brand again because it appears well made. I do not know how durable it will be as I just put it into service.
The Lopez Family
Reviewed in the United States on October 16, 2023
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.
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