AC Infinity AIRTITAN S3, Ventilation Fan 6" with Speed Controller, IP-55 Rated for Crawl Space, Basement, Garage, Attic, Shed, Hydroponics, Grow Tents

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.

This fan means business. IP-55 rated, so it laughs at dust and moisture while quietly turning our crawl space from mystery swamp to actually breathable. Speed controller lets you go from gentle breeze to small hurricane. Sturdy, powerful, no complaints.

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.

Quiet and power efficient

These AC Infinity products are great. I am using 3 to ventilate my crawlspace and they have been flawlessly in service for 18 months now. We purchased this unit to control the temperature and humidity in a chick brooder box. It performed perfectly. Often it feels like connecting similar devices to the app and WiFi is a hit or miss operation. Not with these AC Infinity products. They just connect and work. There are tons of options for temperature and humidity triggered events as well as scheduled events.