I don't think this did anything and as other reviewers ...
I don't think this did anything and as other reviewers noted, it is quite noisy. I was having a serious litter box odor situation and several people said this worked for their litter box odors. This did not work for mine, but as I said, my cat was having some serious issues and it was destroying the lives of everyone in the household. If it had been less noisy, I may have kept it for the bathroom or something, but it was really quite loud and I don't know that it does anything for any kind of air purifying.
Rating: 1 stars