The PETKIT 'Pura Box' Motion Sensored and Odor Eliminating Smart Cat Litter Box is a specially designed Air Purification system meant to both Purify the air while removing bad odors due to feces or urine - while emitting a fresh smelling fragrance. This litter box features a removable, insertable and included PURA handheld Odor Eliminating device that is motion sensored and turns on every time your pet emits Fecal Matter or Urination inside (Hence motion). The PURA Handheld Emiminator than goes to work immediately by removing any such bad smells or odors while purifying the air quality by emitting Negative Ions into the air while filtering out unhealthy air particles. Features a beautiful matted down modernized structure that is heavy duty and built-to-last. Device includes 2-AAA batteries and a Filtration Unit. Additional Filtration Units can be purchased seperately in both Odorless and Scented Fragrances. ITEM DIMENSIONS: ONE SIZE: Length 18.75" x Width 15" x Height 12.7"