 The powerful thunderstorm sends out these O3 molecules. They go under and behind furniture and help to destroy odors. Nothing can hide from the thunderstorm. And listen to this. No filters to buy and replace over and over again like a lot of air filters. Saves you money and scheduling and hassle. And right now, because you hang with me, you can save 200 American dollars on an EdenPure Thunderstorm 3-pack for a whole home protection.