Review on 🌀 VIVOSUN Adjustable Inline Ventilation Controller by Michael Welborn

Well I've gone from being an online metal fan to this plastic fan. It works, but the fan speed doesn't seem to work at all. Once at high speed, which is normal. some. The problem is, if I move my hand about 2-3 inches from the air intake in front of the air intake, the power drops to almost zero. The low speed doesn't really blow air, although the fan spins very slowly. It just arrived today and I won't even install it. I'm in the process of moving and with that in mind I'm not as happy with this product as I used to be and once I move I will order as is before another metal fan. If you want a clean plastic fan to blow air, that will work, but I don't recommend using it with activated carbon filters attached as it can cause overheating and the risk of fire. Customer service, I will update if such an update is needed. At this point, save your money.