Good for what I wanted.
I wanted to eliminate cat litter odors. I have boxes in two area -- a small basement room and a small bedroom. It worked in both for smells. I sounds like a fan so there is a noise. For the upstairs bedroom I will look for one that is more quiet because I could hear this one coming up the stairs. In the basement it's doing a great job especially for the price.  Just put it somewhere that a fan noise wouldn't be a problem.
Rating: 5 stars