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VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver

4.2 4.2 out of 5 stars 14,135 ratings

$24.99
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4 Inch
Silver
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Purchase options and add-ons

Controller Type
Button Control
Material
Alloy Steel
Number of Blades
3
Included Components
Cord

About this item

  • Durable: The fan has a strong motor which features a permanently lubricated bearing that operates quietly and requires no maintenance
  • 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 2930 RPM and 100 CFM air flow
  • Low Noise: Superior balanced centrifugal impeller for long service life & quiet operation; A less than 30 dB noise level does not have any harm and will not disturb your work
  • 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
  • Specifications: Voltage 110/120V, Power 14W; Max Operating Temp of Motor is 130℃ / 266℉; Max Ambient Temp is 60℃ / 140℉; Note: Please turn the fan off immediately if the blades get stuck by other objects
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Customer ratings by feature

Durability
5.0 5.0
Easy to install
4.5 4.5
Value for money
3.9 3.9
Noise level
3.6 3.6
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We found 1 bundle with this item:
VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver

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Warranty & Support

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VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver

VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver


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Product Description

1
6
6
5
6

Inline Fans

1

4 Inch Inline Fan

2

4 Inch Inline Fan

3

4 Inch Inline Fan Kit

4

4 Inch Inline Fan Combo

5

4 Inch Inline Fan Combo

6

4 Inch Inline Fan Combo

7

4 Inch Inline Fan Combo

Customer Reviews
4.2 out of 5 stars
14,135
4.3 out of 5 stars
12,682
4.5 out of 5 stars
2,455
4.4 out of 5 stars
7,365
4.6 out of 5 stars
1,650
4.4 out of 5 stars
5,718
4.4 out of 5 stars
6,989
Price
$24.99 $25.09 $119.99 $107.50 $116.99 $99.99 $99.99
Size
4 Inch 4 Inch 4 Inch 4 Inch 4 Inch 4 Inch 4 Inch
Material
Metal Plastic Plastic; Metal Metal Plastic; Metal Metal Plastic; Metal
Air Flow
100 CFM 195 CFM 190 CFM 203 CFM 190 CFM 203 CFM 190 CFM
Fan Speed
2930 RPM 2500 RPM 2300 RPM 2500 RPM 2300 RPM 2500 RPM 2300 RPM
Noise Level
30 dB 30 dB 30 dB 49 dB 30 dB 49 dB 30 dB
Features
Powerful Airflow; Low Noise Powerful Airflow; Low Noise Powerful Airflow; Low Noise Powerful Airflow; Good Filter Powerful Airflow; Low Noise Powerful Airflow; Good Filter Powerful Airflow; Low Noise

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VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver
VIVOSUN 4 Inch Inline Duct Fan 100 CFM, HVAC Exhaust Ventilation Fan with Low Noise for Basements, Bathrooms, Kitchens and Attics, Silver
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Price$24.99$16.99$23.99$29.99$24.99$22.99
Delivery
Get it as soon as Wednesday, Jun 5
Get it as soon as Wednesday, Jun 5
Get it as soon as Wednesday, Jun 5
Get it as soon as Wednesday, Jun 5
Get it as soon as Wednesday, Jun 5
Get it as soon as Wednesday, Jun 5
Customer Ratings
Easy to install
4.5
4.8
4.7
4.5
4.7
4.3
Noise level
3.6
4.2
3.7
3.6
4.1
4.7
Suction power
3.2
3.3
3.3
3.2
4.4
3.8
Value for money
3.9
4.5
3.9
4.4
3.8
Sold By
VIVOSUN
Amazon.com
Amazon.com
VIVOSUN
HGinline
Amazon.com
material
Alloy Steel
Plastic, Aluminum
Alloy Steel
Plastic
controller type
Button Control
Button Control
Button Control
Button Control
mounting type
Wall Mount
Wall Mount
Wall Mount
wattage
14 watts
12 watts
15 watts
6 watts
voltage
120 volts
120 volts
240 volts
number of blades
3
10
10
5

Important information

Wattage

14 watts

Bulb Voltage

120 volts

Customer reviews

4.2 out of 5 stars
4.2 out of 5
14,135 global ratings

Customers say

Customers like the ease of installation with the electric fan. They mention it's super easy to install and connect. However, some customers are disappointed with the rigidity and energy usage. Opinions are mixed on quality, noise, air flow, fit, and cooling.

AI-generated from the text of customer reviews

132 customers mention121 positive11 negative

Customers find the installation process of the electric fan to be super easy. They mention that it's a simple, quiet, inexpensive way to reduce unnecessary noise in a workspace or grow tent. Some say that the fan is easy to connect because it fits into the vent.

"...First, the install was fairly simple (though I had to cut the wires for hard wire install, not plugging them in)...." Read more

"...It was easy to install inline, and I wired it up to a switched outlet...." Read more

"This was quite easy to install in the attic, simple by cutting a flexible duct in half, securing each end, and hard-wiring it to a circuit and a..." Read more

"...Pros: super easy to install- 45 minutes or less if you’re handy- longer if in a tight or confined space...." Read more

973 customers mention645 positive328 negative

Customers are mixed about the quality of the fan. Some mention it's working great, has excellent results after a month of use, and works well for the price point. However, others say that it failed in early November, was cheap, and fell apart when being handled. Some customers also mention that it'd be better suited for pushing cool air into the plenum than pulling air from it.

"It won't blow stuff off tables. But helps cool down an oven room at the bakery." Read more

"...speak to how good this is for actual use in ducts, but as a cheap powerful basic fan for a DIYer doing something fan-related, it's a great buy and I..." Read more

"Mine lasted just 1.5 years. It was cheap, but now I have a finished project back on my to-do list...." Read more

"I bought one for a indoor air filter project of mine . It's quite enough,just strong enough and built good. Would buy another if needed." Read more

616 customers mention279 positive337 negative

Customers are mixed about the noise produced by the fan. Some mention that it's much quieter than the air noise from the hood, and has a constant sound. Others however, say that it is very noisy and sounds like a jet airplane when it runs.

"...It's a bit loud but I don't care, that's to be expected when going for something with high airflow...." Read more

"...moved is not great, it does help keep the air cleaner, without generating excessive noise." Read more

"...They are pretty noise from that aspect. Just be aware." Read more

"...Fan runs very quietly, but was sadly disappointed with the low volume of air flow that it pushes/pulls...." Read more

320 customers mention179 positive141 negative

Customers are mixed about the air flow of the fan. Some mention that it moves plenty of air, does a great job of circulating air, and pushes air through pretty well. However, others say that it's suitable for HVAC pipes, the airflow is quite weak, and the low rpm motor does not move air.

"Compact and strong. Moves a decent amount of air out of the workshop. Auto turns on when plugged iin." Read more

"...Although the volume of air moved is not great, it does help keep the air cleaner, without generating excessive noise." Read more

"Moves a small amount of air but not as much as I needed. Probably a good fart fan replacement if you want to rig something together" Read more

"I don't agree that these are suitable for HVAC pipes, the airflow is quite weak...." Read more

68 customers mention41 positive27 negative

Customers are mixed about the fit of the fan. Some mention that it fits perfectly into a 4 inch tubing, while others say that it doesn't fit and the diameter is too small.

"Compact and strong. Moves a decent amount of air out of the workshop. Auto turns on when plugged iin." Read more

"...It's noisy. It's small for 4" duct, does not fit snug at all." Read more

"...No screws needed. Presses in place. As long as there is electrical service, the room will have enough fresh air to make it comfortable." Read more

"The install was easy, the hose clamps fit perfectly. I use this to vent out the fumes from my X-Tool laser cutter...." Read more

42 customers mention26 positive16 negative

Customers are mixed about the cooling of the fan. Some mention it's loud but does circulate and cools the warmest room in their house, it helps pull heat to other areas in house and that it handles the heat well. Others say that it does not cool, the motor heats up and the airflow is more than half less than it was.

"...The third thing it needs to do (on this checklist), is keep the computer cool...." Read more

"...It’s so hot in fact, it melts and distorts the window mount that comes with the A/C unit, allowing the heated air to literally blow back into the..." Read more

"It's louder than my box fan BUT it is no longer hot upstairs. Good trade off in my opinion...." Read more

"...] It’s really loud but does circulate and cools the warmest room in my house. Could benefit from product design tweaks such as the following:..." Read more

57 customers mention4 positive53 negative

Customers are dissatisfied with the rigidity of the fan. They mention that it has a vibration and rattles. Some say that the motor assembly begins to rattle with slight resistance. Some customers also mention that the blade became loose and started squeaking loudly. Overall, some customers are disappointed with the quality of the product.

"...So far I'm still using this because the rattling noise is intermittent. I'm going to ride it out as much as possible before putting in the new one." Read more

"...Its reasonable but IMHO has a bit of vibration and is quite loud. No speed control so that's part of it, undoubtably. Is it too much? Maybe...." Read more

"...Indeed, it was loud, and vibrated a good bit...." Read more

"...and I ended up losing money on the job because of the excessive noise/vibration from the cheaper made fan motor. Would not recommend...." Read more

36 customers mention7 positive29 negative

Customers are dissatisfied with the energy of the fan. They mention that it's too noisy, lacks power, and operates at half power. Some say that the motor just died out. They also say that it makes absolutely no air current and that it runs on a timer.

"does not have any power to blow heat off a hot pipe....useless" Read more

"...It also seems to be a little too high powered and louder than I wanted...." Read more

"a little under powered but for the price you cant beat it i have had one set up as an intake for my grow room for about 6 months now and its done..." Read more

"While this device is quick and low power (~10a) it's not that powerful...." Read more

Booster fan for computer & room cooling
3 Stars
Booster fan for computer & room cooling
At only 100 CFM, this fan isn't too bad. If 100 CFM is what you need. I was expecting more from the design, I guess.With adding an 8 gig video card to my recent computer build, the temps on my chip cooler sky rocket to around 104°F or 40°C on many games, from an average of around 82.4°F (28°C). Which isn't too bad really, but I want to add some filters for dust, & having 104°F pumping into the back room, makes it very hot on a summer day.So I searched around & found this, that I thought would be a solution. I figured it was better than a large Molex powered fan.What I wanted, was to remove the heat that the computer was pouring into the room, with a powerful fan & vent system. All of the air flow goes in the direction of the top vent, & out already. Now I want to pull it out of the room, to the window to the outside.The video card is loud enough on it's own (see review elsewhere), so adding filters to soften the sound, as well as a vent to pull the sound, should reduce it, along with the heat.I looked over Amazon & the net, & found this had the most "quiet sound". Quiet, being relative to the user, of course. Some reviews said it was loud (it is).As you can hear in the video, it is louder than the filtered & non filtered computer.Just to give you an idea. The computer has a twin active fan on the video card, A T-1 thermal tower for the CPU, a 120" side panel fan, & some case fans; on it's own it can be a little loud. Mostly it's the video card, as a simular tower build w/o the 8 gig video card can't be heard (see Black Ice Monster review).So, noise isn't winning any awards. The video is via my phone, not great, not bad. Gaming headset doesn't pick it up, as an FYI.The second & most important thing this Vivosun booster fan needs to do, is evacuate the heat from the computer, so that it doesn't enter the room. The third thing it needs to do (on this checklist), is keep the computer cool. Preferably below current temps, but with in an acceptable range, as long as it's evacuating the room.So far, it's doing #2 alright.Bottom line: With the computer filtered & shut; it will drop the temp about 1-2°C in about 2 minutes.With the side panel off, it will drop it 5°C in 1 minute.The mean running temp in spring: is 35°C (95°F)Under load 43°C (109°F)With the fan off the computer has reached 52°C (125°F) under load on a simple game (Little Nightmares), & the VivoSun brought it down to about 42°C in about 10 minutes. Outside it was around 82°F, the room about 75°F with a pole fan running.So it does alright, just not great. It runs helps at about 5°C on average, but it does evacuate the heat to the outdoors for the most part.I can't say if the 240 CFM fan will do any better as I'm afraid it will be much louder. It's not horrible, just not quiet It sounds like an A/C unit. Oh yeah, it has a tick now after intermittent use in three months. I don't run the vivo fan when just doing text or surfing, only when gaming or doing 3D stuff.Also, the power cord is plenty long great job !! I have it on a wireless remote so I just click & on.
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Top reviews from other countries

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FerOV
5.0 out of 5 stars Resuelto el problema
Reviewed in Mexico on February 19, 2024
Size: 4 InchColor: SilverVerified Purchase
Pedro Bremont
5.0 out of 5 stars funciona muy bien
Reviewed in Mexico on August 25, 2023
Size: 8 InchColor: SilverVerified Purchase
Amazon Customer
5.0 out of 5 stars Good Quality
Reviewed in Canada on September 21, 2021
Size: 4 InchColor: SilverVerified Purchase
Jesus
3.0 out of 5 stars Suficientemente bueno, para el uso que le doy
Reviewed in Mexico on January 4, 2024
Size: 8 InchColor: SilverVerified Purchase
Paulina Ramírez
5.0 out of 5 stars Funciona bien
Reviewed in Mexico on September 23, 2021
Size: 4 InchColor: SilverVerified Purchase