Review on YIOU Large Room Air Purifier for Home, up to 547 ft², H13 True HEPA Filter, 20dB Noise Level, Odor Eliminator, Allergy Smoke Dust Mold Pollen Remover, California Compliant, White by Michael Crossman

I must say that I am very impressed with this air purifier. Bought to go in the living room of my new 1 bed/1 bath due to allergies. The little one strikes. I was cooking bacon and the whole place smelled like grease, but this little guy on high got rid of the smell in an hour or two. My apartment is about 5-600 square feet and the living room is about 200 square feet and it works great. ! It's very interesting how you open the bottom to change the filter. Vacuum the outside about once a month and it'll keep working like a champ. There is no charcoal pre-filter, which I find interesting, but I don't have any pets. So my main allergy will come from my carpet and my exterior. Overall I'm happy with my purchase so far.