Abstract: A safety device for preventing accidental contact of a user's fingers with the live blades of an electrical plug during inserting or removal of the plug from a wall socket and a method for attaching the safety device to an electrical plug. The safety device includes a housing with a collapsible shield and a connector for connecting the housing to the front end of the electrical plug. The shield extends outwardly from the front end of the housing and surrounds the blades when the safety device is attached to the plug. The connector comprises a pair of opposing detents that extend outwardly away from the rear wall of the housing. The detents flex to allow the front end of the plug to pass between them but do not allow the front end of the plug to be withdrawn therethrough. The shield collapses toward the front end of the housing when the plug is inserted into a wall socket and re-expands to its original position when the plug is withdrawn from the wall socket.

Abstract: The present invention provides a respirator hood assembly that has a bag, a half mask and an air filtration unit that defines a rigid external structure around at least a portion of the bag that supports the hood and allows the user to quickly don the hood.