5 out of 5
Customer Reviews
By
Joshua
Date: April 04, 2022
Long lasting and quiet
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By
Edwin Alvarez
Date: April 04, 2022
This was perfect addition for my 3d printing shop, very good for fumes extraction
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Sniperz101
Date: April 01, 2022
Awsome exhaust fan
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Danimal
Date: March 25, 2022
Amazing fan. Wish I would've gotten the 6in. Still having pressure issues. But still able to control vpd perfectly with this guy
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Allen Sharp
Date: March 21, 2022
I used this fan to move air from one room of my house to another. I built a tiny home that doesn't justify normal central heat and air with conventional ducting. So I used one main mini split to heat and cool and these fans move air from one room to another through the closets. I also used the AC infinity ducting and fan grills as well. I am thinking of buying another one to move even more air. Great product!!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Joshua
Date: March 18, 2022
Exactly what I need ! CONTROLLER 67 is just amazing ! Getting the Controller 69 here soon ! And that I heard is even better !!!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Mark A Diller
Date: March 15, 2022
I bought this fan to exhaust smoke from the enclosure I made for my laser engraver. I used 4” dust collection fittings and hose to vent air outside and this fan works perfectly for the application.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
David McManus
Date: March 11, 2022
Works well but noisier than expected.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
A Customer
Date: March 07, 2022
Customers service team are great. Willing to listen to issues and urgent resolved. This S4 fan performance top of its game. Highly recommend their exhaust and internal fans.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Caldwell
Date: March 04, 2022
First time using a fan like this and I was surprised with how quiet it is. It reminds me of a jet engine starts up and slows down really smoothly. I love it
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Ernest Osborne
Date: February 28, 2022
I bought this to replace a Vivosun 4 Inch 190 CFM Inline Duct Ventilation Fan I'd purchased which turned out to be an incredibly noisy nuisance which vibrated so badly it rattled anything on which it was mounted. I should have gone with this AC Infinity fan in the first place as I've always used AC Infinity fans in the past but was attracted to Vivosun's lower price. This Cloudline S4 is a little more money but not only remarkably quiet compared with the Vivosun product but moves about 20 more air and uses less than half the power to operate. I hope this review is helpful to someone.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
E J
Date: February 18, 2022
Worth the investment,does what it's designed to
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Larry R
Date: February 15, 2022
I bought this to ventilate my basement. Depending on how well it worked I was going to buy a humidity level activated switch so it wouldn't run all the time. It is very quiet and moves a lot of air. I was very concerned about the noise level because it exhausts under the stairs in my living room. The only reason I don't give it five stars is actually my fault for not doing my research. After I started reading the directions I discovered they make a model that you can set humidity levels and is wifi.
Rating: 
[4 of 5 Stars!]
[4 of 5 Stars!]
By
DonC6
Date: February 08, 2022
It's nice but there's no way this is 204 cfm. Filter and mufler reduces the air flow a great deal. Way more than wirh my old style 184 cfm fan.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Paul
Date: February 06, 2022
A lot more power than other fans I tried, with adjustable speeds. Very satisfied!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
D. W.
Date: February 04, 2022
Awesome fan! The ends of the fan receive the 4 ducting without special connections. Mounting it is easy too. Remove two clamps and remove the fan assembly. There are screw holes in the base to secure the fan to the surface.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
A Customer
Date: January 31, 2022
I ordered the model S4 from France and it arrived 12 days later from the United States. It works perfectly with a universal plug so I am delighted. There are also two straps and two clamps included. In speed 1-2-3 you can hardly hear it. I'm using it in speed 5 for the moment and it does the job. In speed 8 it is very powerful but it also makes a lot of noise. I took into account that I would never use it at maximum speed before buying it. I recommend it 100.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
A Customer
Date: January 26, 2022
Never bother to post a review but this is the 2nd one I have bought,the first one has been running 24 7 for two years now and in a day of alot of garbage being sold I am impressed and had to comment,yes I would buy another one
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
A.Newton
Date: January 23, 2022
Quiet, smooth. Great packaging. Love it.Tent size 4' x 2'
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
D. Nels
Date: January 17, 2022
Overall good product. Paired with the AC infinity tent i have good results. Using in a 4x4 so i could have gotten a 6” but this 4” has been doing an okay job keeping temps between 70-75 while using an HPS/MH bulb.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]