 So it traps dust. It traps pollen. It traps the stuff floating in the air on electrostatic plates, no less. So you don't have to buy a subscription to keep getting filters. But where it really shines, where I love it, it's an odor eliminator. So the Eden Pier Thunderstorm wipes out odors, uses ozone, wipes out odors. And, you know, I've had these in hotels. I've carried one. They're so small you'd hold in the palm of your hand.