AC InfinityAIRLIFT T12, Shutter Exhaust Fan 12-inch with Temperature Humidity Controller – Wall Mount Ventilation and Cooling with WiFi Integrated App Control for Sheds, Attics, Workshops

As soon as we opened the package we could tell that it was good quality! It's not completely installed yet but my husband tested it out and it is so quiet! This will be a positive impact in our new greenhouse!

Can’t say enough about both the Product and the customer service I received from AC Infinity.I bought this the summer of 2021 and installed it in our attic with the controller wall mounted below in a bedroom. I should have done it years ago! The difference in (especially nighttime) home cooling was dramatic! Without this powered ventilation, heat would radiate downward from the hot attic all night making sleeping difficult. Now, soon after the sun is down the digital readout from the attic sensor shows how quickly all that heat is exhausted and we can definitely tell the difference with cooler home temps.Then, this spring when I went to turn it back on, I couldn’t get the controller to come alive. An email discussion with the mfr AC Infinity followed, with them sending an entire replacement unit after we couldn’t fix it with troubleshooting. And they shipped it right away.When detaching the old controller, I noticed that the 4-pin molex connector had been turned around and plugged in backwards! After reversing, it all came back alive. So the product wasn’t even defective in the first place!Since we AirB our place occasionally, I’ve deduced that likely a guest did the swap thing one day when the high temp alarm was beeping and didn’t say anything to us. Fortunately, the alarm feature can be programmed “off”. So I learned my lesson to not use the alarm feature with guests.Good product, comes with all the wiring, fasteners, etc and well-written instructions. And is backed with responsive customer service that responded and acted quickly. Very rare these days.Highly recommend!

I love the automatic fan speed feature, it's nice to have it nice and quiet most of the time, but when it reaches my setpoint, I can have it turn all the way up to 10, by whatever temperature or humidity increment I want. And it moves a ton of air when it's turned all the up. When it's on 4 or lower, my ears can't even tell that it's on; I only feel the air moving.

Very simple yet innovative system for automating the flow of air for temperature and humidity control, remote sensing and monitoring in a durably constructed solution. Takes a lot of effort out of having to manually inspect conditions and absolutely confidant these will last for many many years. Firmware updates are simple, not nail-biters and no worries about any aspects of the units failing. Spoiled chickens for sure.

Specs not mentioned in the description:- The box with the flaps is just under 13.5" (they only provide the size of the circular grill and overall, but if you mount from the inside of the wall you need to know this cut-out size).- Power draw at speed 10 is about 44W, and the power does reduce (sort of linearly) as the speed reduces.- Power draw at speed 0 is 2W (Or about 17.5kWh to leave it plugged in and off all year). - So if you are in a $0.40/kWh electricity area, thats $7/yr to have it installed but powered off.- My old 14" fan was 65dB at 5ft (loud enough to replace it), this 12" is 55dB on speed 10 (loud enough to sound like a loud fan), and very quiet on speed 1 (can't measure dB because background noise was higher). (All this measured with a random phone app).Cons:- Flaps do not fully seal when closed. There is a 5mm gap on the edges. This means bugs and drafts can enter when the device is off. This is a clear design flaw that should be improved.Pros:- Easy enough to set up and get the app and remote working- Its possible to click buttons to manually set the speed 1-10, you dont 'have' to use the automatic stuff- Seems sturdy enough