Abstract: A disposable cat litter box system convertible from an open box to a covered box with an attachable hood and air treating devices. Said air treating device comprises an access opening in the box upper wall member going to an absorbent material to be liquid dosed with cat products. Said absorbent material is secured to the inside surface of the upper wall member covering the access opening. Said hood comprises a fold-line creased paperboard or plastic flat blank, erected into an attachable hood having a horizontal locking bottom flap, opposing vertical side walls and horizontal top wall secured to the cat box by the horizontal locking bottom flap and spreadable, tensioned elastic bands. Included is a method to reuse the disposable cat litter box by opening and closing one end of the cat box to pour out used litter and refill with new litter.

Abstract: A disposable cat litter box system convertible from an open box to a covered box with an attachable hood and air treating devices. Said air treating device comprises an access opening in the box upper wall member going to an absorbent material to be liquid dosed with cat products. Said absorbent material is secured to the inside surface of the upper wall member covering the access opening. Said hood comprises a fold-line creased paperboard or plastic flat blank, erected into an attachable hood having a horizontal locking bottom flap, opposing vertical side walls and horizontal top wall secured to the cat box by the horizontal locking bottom flap and spreadable, tensioned elastic bands. Included is a method to reuse the disposable cat litter box by opening and closing one end of the cat box to pour out used litter and refill with new litter.