Abstract: A self-deodorizing litter box for pets and comprising a box having a first compartment open at the top thereof for receiving a supply of pet litter therein, a second compartment open at the top of the box and in substantial alignment with the first compartment for receiving the pet litter therefrom, a partition and filter means are provided between the first and second compartments, and the filter member is a suitable filter material, such as wire mesh for filtering the pet litter as it is moved from one open compartment to the other, a closed compartment provided beneath both open compartments, independent floor members provided for each open compartment and interposed between the open compartments and the closed compartment, each floor member being slidable between open and closed positions for providing selective communication between the open compartments and the closed compartment for discharge of filtered materials from the pet litter into the closed compartment, and deodorizing chemicals disposed in th