Abstract: This invention comprises a deodorizing tray located for under a refrigerator ceiling panel or shelf or other horizontal support in a space. The tray has a bottom surface for supporting a fluid deodorizing material. In one embodiment, laterally extending flanges on the tray provide support for a securing device for attaching the tray to the underside surface of a shelf. In a second embodiment, a second tray having a bottom and an upstanding wall is configured for removable reception in the first tray under a shelf. Lateral flanges on the first and second trays have mutually registering socket and detent members arranged for cooperative engagement when the second tray is installed within the first tray. The wall of the first tray is open at its rear end to removably receive the second tray. In a third embodiment, the tray is formed as a depression in a retractable refrigerator shelf, and a surrounding wall spacing the bottom of the tray below the plane of the shelf confines the deodorizing material on the tray.