It’s about time someone did something about the penetrating smell of cat odors! The Bionaire Odor Grabber Air-Cleaning Litter Box automatically removes embarrassing and unwanted feline odors with the flip of a switch. A built-in electronic air purifier with advanced filtration quietly circulates the air without disturbing the cat. A pre-filter also removes harmful litter dust, dander and fur flowing through the filter. Litter box includes a 12-foot power cord and two sets of filters.