 Thousands of five-star reviews. It works, and it works very, very well. Any smell is going to vanish. That odor is going to be gone after a few seconds with the thunderstorm being gone. Odors from litter boxes, trash cans, cigarette smoke, dirty diapers, and more are no match. The powerful thunderstorm sends out O3 molecules that seek out and destroy odors underneath, behind stuff. You don't have to buy filters all the time. That's going to save you a bunch of money as well. Start enjoying your home again. Get several of these. We've got three in the PAGS house.