The present disclosure is directed to devices and kits configured to displace noxious odors generated by pet waste or excrement from within pet waste receptacles, such as a litter box kept within the pet owner's living space or home to areas existing outside of such owner's living space via a preexisting window therein. More particularly, a flexible, elongated duct is coupled to an exhaust hole in any hooded litter box on one end, and on another end, coupled to an electrically powered fan and universal window vent panel. When the window vent panel is sealedly disposed in a window and the fan is powered on, noxious air within the receptacle is drawn through the exhaust opening in the enclosure, the duct, and an exhaust opening in the window vent panel to an outside of such window.