Abstract: An odor filter apparatus for a litter box comprising: a rear wall; a first side wall located on one side of the rear wall, and orientated orthogonally to the rear wall; a second side wall located on an opposite side of the rear wall from the first side wall, and orientated orthogonally to the rear wall, the walls configured to rigidly attach to a litter box bottom, a vent located in the rear wall; a filter housing attached to the rear wall, on a side opposite the first and second side walls; an active odor removing element located in the filter housing; a fan assembly housing removeably attached to the filter housing; a blower fan located in the fan assembly housing; a mounting opening in the fan assembly housing; a fan exhaust sealing device attached to the mounting opening.

Abstract: A pet house substantially formed from a unitary blank of material, foldable from a collapsed state for shipping and storage to an erect state for use. The house includes a bottom having four edges. The house also includes first and second side walls and first and second end walls. The side walls are attached to one another forming an apex at the top of the house. One end wall includes an opening to permit the pet to ingress and egress the house. The bottom includes a slot near one edge for receiving a locking tab which extends from one of the side walls. Fasteners are provided for attaching the first and second end walls to the first and second side walls.

Abstract: A container for carrying pets which comprises a hollow body with a closeable access provided with at least one opening which is blocked by a grille; the grille is fixed to the rim of the at least one opening by means of rivets, the body being shaped, at the opening, so as to form a perimetric fold for peripherally supporting by abutment the grille which is provided with a plurality of holes for the insertion and retention of the rivets.