Electrical box penetrations in walls can represent a source of uncontrolled air infiltration. These right plastic insulated electric outlet covers have a pre-installed foam gasket on the back side, and a hinged socket cover on the front, resulting in a safer electric outlet allowing for little, if any, uncontrolled air infiltration. The hinged socket cover may be fully removed if both outlets are being used. This model may with either two-prong or grounded plug outlets in single-gang electrical boxes.