AC Infinity CLOUDLINE PRO T8 Quiet 8" Inline Duct Fan with Temperature Humidity Controller Heating and Cooling Fan Promotes Cooling Growing Tent Hydroponics

Do not cheap out on fans. Buy one of these. I've got a handful of cheap ebay fans in a pile in the garage and none come even remotely close to the cloudlines. You get what you pay for and these are an absolute testament to that. I've purchased 4 of the AC Infinity products now in varying sizes and every single product is a 10/10 including all the adapters/fittings they sell.

I've owned this for 4 years now and probably only used it for 2 of those years. I bought it alongside an S8 and they both worked in tandem to extract hot air from the top and side of a grow tent that basically housed 2 crypto mining machines.These worked perfectly and would turn on or ramp up when the temperature in the tent got too high thanks to the sensor. I could also control it remotely from work in the city.They have been sitting around for a good 2 years and I was planning to sell them this summer to make some cash because it seems like they hold their value. Mine are pretty much pristine still.However, with this heat wave, I have been using the S8 to help extract the warm, humid air out the window from my workshop garage when I go in there.And tonight, as I write this review, I am using the T8 to suck in cold air from outside in to my very hot computer room on this hot summers night. I'm basically writing to say that these are currently the best fans in my household at the moment. They are both basically making the environment habitable.If I had set these up probably with the ducting tubes, I would be in paradise.Great products.

It is very quiet specially if put on speed 9 . The maximum is 10, which I don’t need to use it. I live the smart Wi-Fi control madule. It is very practical and worked perfect for my case. In general I am very happy with it. Regarding the longevity of the fan I can’t make any comment since I have it just for few weeks.

The best in the game, the wet dream of every passionate home grower. :)

UPDATE: July 2019 - This fan no longer comes with a "smart" controller, and now comes with a humidity controller. The biggest difference is that once it hits the set temperature it turns off (or on) completely. It does not vary speed with temperature. After purchasing a new unit last month I had to call AC INFINITY to order the old style controller, because I need the fan to always run at least at the lowest speed.FREAKING LOVE THIS FAN!! It is worth the extra money over a $60-120 fan. If you need things to be quiet,or need a smart variable fan (slower when lights are off, and faster when lights are on), than this will get the job done. It has 6 speed settings, with 1-5 being very quiet, and 6 being a little loud. Even though it is rated at a lower CFM than most other fans this size, the side by side hand test had me thinking this fan puts out 20-30% more air.In my specific example, I had a $80 fan 8" fan I bought a few month ago running just above its lowest speed (because of noise) and room temperature hovered about 88-90º with ambient temp of 80º. With this fan running at speed 4 or 5 during lights on.the room temperature hovered about 84-85º. The noise at this speed is at least half as loud as the old fan on its low speed, and temps are 5º cooler, WIN!Plus when lights are off the speed slows to 3 or 4 and I cannot even hear the fan any more. This is such a huge improvement for my indoor grow as lights off is during the day and I can no longer hear the fan.NOTE: The controller on this fan will not control 2 fans like on the 4" and 6" versions.