Electrical switch and outlets protecting cover for painting

A cover for protecting an electrical outlet box and a room thermostat located within and secured to said box, said room thermostat having one of two standard size circular control knobs, said cover comprising a rectangularly-shaped cover element molded in one piece of a size smaller than the size of a standard wall plaque normally removably secured over an electrical outlet box for covering said room thermostat, said cover forming a box-like element open at the back and provided at the front with a pair of raised portions, of generally cylindrical shape and of two different diameters, each raised portion adapted to frictionally fit onto one of said two standard size control knobs.