Bullard Free-Air 15" X 28" X 6" Electric Driven Oil-Less Pump helps to transfer ambient air to a supplied-air respirator from a breathable air source and delivers an airflow with a capacity of 16 CFM at 5 psig. Pump includes fan cooled motor and has an inlet filter and a carbofine outlet filter that filters the air before entering respirator's air supply hose and is used to supply air to two continuous flow airline hood/helmet style respirators or three tight. It contains 7" grounded electrical cord with a standard three-prong plug. It uses low-cost means of delivering clean, breathable air to workers in contaminated environments up to 300' away from the pump. It is easy to operate and maintain. It is NIOSH approved.