The PetSafe Simply Clean Automatic Litter Box is an innovative, automatic litter box that stays fresh and clean without scooping. The quiet, slow-moving conveyor system sifts the litter and removes waste every 30 minutes, making one full rotation every hour and a half. Waste is carried off to the covered bin, keeping it out of sight while reducing odour. The replaceable carbon filter acts as a second layer of odour defense.