 odors in the air, mold in the air, so much more as well. 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.