Review on 🏠 FIWOTTTDA Large Room Air Purifier, 1540 ft² Coverage, 5-in-1 H13 True HEPA Filter, Reduces 99.97% Pet Hair, Smoke and Odor, 5 Wind Speeds with Air Quality Monitor, Ultra-Quiet 25dB, Ideal for Bedroom and Office by Nancy Bryant

Upgrade from 2 to 1 star in a few months. Both devices work just as badly as before. The seller got in touch and asked me to run some tests. First, they failed the tests. Second, these are very lame tests. I was asked to set something on fire and stay just behind the department and watch the numbers grow. Sorry, but if that's the only way to increase the number, then this thing sucks. They will never clean as many square feet as they say. They are cheap. I bought two to test with each other and other brands. The fan feels cheap, the case feels cheap, the filter feels cheap, the touchscreen is very spirited. They say you get what you pay for, these units are the cheapest you can get for the square footage advertised, but still I don't think they're worth it. Read quality is a joke. It doesn't actually seem to read the air quality.