 Nothing can escape the thunderstorm. And best of all, you don't have to buy filters and replace filters over and over again. They're small, too. You can hold one in your hand. They're only this big. Saves you money, saves you hassle. No filters. And right now, you can save $200 because you hang with me. When you get an Edenpure Thunderstorm 3-pack for whole home protection.