F & M Fire Protection Service Inc. sells and services fire extinguishers. The company also performs hydro-testing and re-certification on high and low pressure cylinders. Based in Hyattsville, Md., it sells reconditioned carbon dioxide (CO2) cylinders for beer, soda, airbrush and paintball. Some of its clients include Pepco, Washington Suburban Sanitary Commission, University of Maryland, Howard University, V.A. and Coco-Cola. F & M Fire Protection Service Inc. is a member of the National Fire Protection Association (NFPA) and National Association of Fire Equipment Distributors (NAFED).