CLOUDLINE S8 PRO, Quiet 8” Inline Duct Fan | With Speed Controller - EC Motor Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics

I've owned this for 4 years now and probably only used it for 2 of those years. I bought it alongside an T8 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 this 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.

Du bon matériel bien fini, avec prise française. Très puissant !

I ordered this unit to be able to recirculate the air within a room through a furnace type filter. I was positively impressed with the quality of this product. It looks nicely finished, simple and elegant. The wiring and the connections are of high quality and workmanship. It has a smooth acceleration, is vibration free, and quite. The speed controller and the temperature/humidity are nicely implemented, easily programable and very versatile. The temperature/humidity sensor is also well designed and easy attachable to any surface. The ability to add a second fan to the same controller is another nice feature. I am very satisfied with this product.

Absolut zu empfehlen sehr Leistungsstark und Qualitätiv hochwertig gebaut. Arbeitet zuverlässig mit den anderen ac Infinity Komponenten. Allgem lieber mehr Leistung als benötig einkalkulieren bei mir läuft das ganze auf Stufe 1-3 von 10 möglichen absolut leise im Betrieb auch ohne Schalldämpfer

The AC Infinity CLOUDLINE S8 PRO has been a total game changer for venting my miner room. The 8” inline duct fan moves a huge amount of air while still being surprisingly quiet thanks to the EC motor. The 10-speed controller makes it easy to fine-tune airflow depending on the temperature load, and I’ve noticed a big difference in keeping my miners cool and stable. Build quality is excellent — sturdy housing, smooth fan operation, and the controller feels responsive and reliable. Installation was straightforward with the included hardware, and once running, it just works flawlessly. ✅ Pros: Moves a lot of air with quiet operation 10-speed controller allows for precise airflow control Solid build quality, built to last EC motor is energy-efficient and quiet Perfect for grow tents, server rooms, or mining setups ❌ Cons: Higher price point than basic fans (but worth it for performance and reliability) Ducting not included, so you’ll need to purchase separately 💡 Tips: Pair it with insulated ducting to reduce noise further. Position exhaust outside or into a larger ventilated area to prevent recirculating hot air. Use a temperature/humidity controller with it for fully automated cooling. Mount with rubber isolators if possible to cut down on vibration. Bottom Line: This fan is a must-have for serious ventilation needs. If you’re running miners, servers, or even grow tents, the S8 PRO is a reliable, efficient, and quiet way to keep heat under control. Well worth the investment.