AC Infinity CLOUDLINE S4, 4” Inline Duct Fan, Quiet & Energy Efficient, 205 CFM, 28 dBA, 24W, 11.9” x 6.9” x 9cm, Compatible with Grow Tents, AV Racks, Desktops & Laptops

Good quality. Very quiet. Using for 1.5 years. Excellent quality

パワー感は、どうかな？ と、いった感じです。

The brand is one of the better manufacturers selling to the general public and the vendor was very supportive and provided prompt service. I would buy from them again and recommend the inline fan without hesitation. It’s quiet at lower settings and works without issue.

AC Infinity has changed the game of home growing for everyone. This fan is priced very well for the level of quality and features it packs. I plugged it into my AC Infinity AI controller and it detected it without hardly any intervention. Since I am not growing plants, but gourmet mushrooms I needed to disable the AI (broke my heart because its truly amazing) and set it manually at the precise numbers I needed. High humidity and low CO2 for fruiting. I had trouble getting it to accept the numbers I wanted since I was not growing standard plants. Called support and had Judy on the line with zero wait time. Judy was a controller ninja and walked me through the clicks to get exactly what I needed set up. Perfection! She didn't ask a million questions, didn't have to go through a painful data collection pre call, just picked up the phone and asked how she could help me. I explained my issue and she had a solution in minutes. Made sure it worked for me and was a pleasure to work with. I don't call support for anything, even at work, unless I am totally dead in the water with no options. AC Infinity made me rethink this stance. The fan itself works great. 10 different settings. Perfect for a mushroom grow tent thanks to the true waterproof rating. Humidity won't even touch this thing. The fan looks sleek and runs silent. I see there is a sound damper available but can't imagine why one would need it unless they sleep next to the tent because its so quiet. The setup was quick and easy. It moves a ton of air and keeps the FAE spot on in my tent. I love the AC Infinity products. I already had a fan and filter and 2 humidifiers that I swapped out just so I could use them with the controller and have more matching gear. I want to set up a garden inside now since this system is so easy to use and works so well.

These fans ( I bought 2 - 4" and a 6") are amazing, the process was slick and efficient, it came in its original packaging and the seller sent them to Amazon ASAP!!! I will most def buy from them again, in fact I probably need 2 more, sooner than later.

These fans are amazing, the process was slick and efficient, it came in its original packaging and the seller sent them to Amazon ASAP!!! I will most def buy from them again, in fact I probably need 2 more, sooner than later.