Have had it for a week or so now. I placed it in my office at work where I have a lot of clients throughout the day and some just got done smoking and its bad. So I do know for fact it works on odors. Does the UV light kill everything its suppose to I cannot honestly answer that, but it looks cool. Does it remove everything it says it will Cannot honestly answer that as well. However, it is nice and for sure makes the air seem cleaner and no more odors and most of all, I feel a bit more relaxed and safe that it may really kill what it says it will. I am satisfied and love it and will order 5 for my home. I give it 5 stars.