From the seller:
Turn it on, odor's gone!
Automatically removes embarrassing and unwanted litter box odors through a built-in electronic air purifier with advanced filtration.
It continuously eliminates odors in the litter box while sending fresh, odor-free air into the room. Specialized odor filters with activated carbon and zeplite targets.
It also removes harmful litter dust, dander and fur.
Quiet operation. Color: Gray.