Abstract: An air vent insert for boosting circulation and/or purifying the air in the room in a safe and cost effective manner is disclosed. The insert includes a housing configured to be inserted into an air duct and covered by a face plate. The housing has a flange portion that rests on the wall or floor surrounding the duct opening and a body portion recessed in the duct to achieve a low profile design. The body portion contains one or more fans and/or air purification units coupled to an electronic control unit. For increased safety, the entire unit operates on low voltage DC power supplied from an AC/DC converter plugged into a standard 3 prong wall outlet.

Abstract: A heat-sensitive toy consisting of variously shaped mylar polyolefin strips prepared by being forcibly drawn across a straight edge so as to assume curved curly shapes and then assembled to form a simulated object such as a serpent, snake or flower. When exposed to a heat source, these simulated objects change the curvature of their parts, curling or uncurling, and conversely return to their original shape when the heat source is removed. Each simulated object is attached to a self-supporting member, designed to display the heat-sensitive toy to advantage.