5 out of 5
Customer Reviews
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
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
J.C.
Date: January 09, 2022
Easy to install. Compact unit moves quite a bit of air. A bit noisier than I expected but quieter than many others. Comes with everything you need except the ducts. Recommend.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Felipe
Date: January 03, 2022
This 4” inline is quiet easy to install and very efficient for a 4” fan I use it in a 3x2 grow tent for more airflow and it works perfectly.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Chris R.
Date: December 18, 2021
I should have pulled the trigger on this a long time ago. I bought cabinet cooling fans from these guys a long time ago and they still run strong. The packaging is nice, and the instructions are clear as day.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
REG
Date: December 17, 2021
Like the variable speed control even on high speed the noise is not bad at all Very easy to install looks good easy to operate
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Jamarcus Monsalvatge
Date: December 03, 2021
Get job done
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Couchflyer RC
Date: December 02, 2021
The fan is used to vent a 2 x 3 grow tent. There is 25 of flexible duct and the carbon filter is attached. It handles the job quietly with power to spare. Everything about it is first class. Overall, this has been a very positive experience.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
A Customer
Date: November 30, 2021
It was bit tricky to get this into my 2X2 but I figured it out. I like being able to control the fan via the included control switch. Quality piece of equipment. VERY quiet. I am happy with my purchase. BTW I ordered the duct, and the filter. Excellent!Thank You
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]