AC Infinity AIRTITAN S7, Ventilation Fan 12" with Speed Controller

We added it to the ceiling of a coat closet converted into our equipment rack with a ups that generated some heat. Didn’t want to keep the door open nor add louvers. This is great and works as should. Only been a month so it’s turning on and off as needed.

This was easier to install than I thought. I went into the crawlspace, screwed it in behind one of my crawlspace vents, and plugged it in. The default speed is 10 so you don't need to connect and use the controller unless you want to reduce the speed. It is super quiet, I can't hear it from the house unless I open up the crawlspace hatch. I had to cut the faceplate a bit with a metal saw so that it fit in the space where my vent was, but that was pretty easy. Within about a day, my radon levels dropped by ~50% and never came back up. Airflow really helps dilute the gases under the house. Saved me thousands $ and tons of stress. 5 stars.

Installed it to remove carbon monoxide from my garage since I park my cars inside. A must have if you have classic cars that do not have catalytic converters, as the exhaust gases can be fatal and cause cancer overtime.

I bought a house with a sealed crawl space, and radon test showed level in the 4-6 range inside the house. Radon mitigation companies quoted me a minimum of $2500, and they are next to impossible to get an actual response or schedule anything with anyway. So I decided to take matters into my own hands. I researched online that in a sealed crawl space, the EPA actually recommends leaving at least one foundation vent open to allow soil gases to escape. I installed this fan in one of my crawlspace vents and set it to run at ~50% power. Within 24 hrs, radon levels were below 2. Within 48 hrs, radon levels were below 0.6. Running at 50% power, this fan is quieter than a whisper. I really like the ability to adjust the fan speed. Two things I don't like: 1) Speed adjustment control is a little digital device that plugs into the power supply via USB-C cable. It would be better if the speed control was a mechanical knob directly on the device; and 2) the power supply cable comes out of the bottom of the fan, which interferes with installation. it would be better if it came out of the back.

It's just two cheap plastic fans on the inside and if you need too remount it you cannot because the fans break super easy as you screw them back in

It helps to move the air in crawlspace and reduce humidity!

Great product . Smart ventilation fan that draws close to specs. Variable fan to accomodate conditions. Nice that it plugs into UIS without using ACinfinity brick plugs. But great ideas can be degraded in implementation. The power cord where it enter the fan is placed far to close to the outer wall plate. I am lucky as I only have thin 1/8 inch metal I am inserting this in but any thing thicker would require cutting hole in wall to put cord through. A little thought by engineering could have noticed this flaw on a otherwise great product. Just move the power cord entry to fan back a little to accomodate any wall fan inserted in.