Chemical storage cabinets, whether used for flammables, corrosives or pesticides/poisons,  come with capped bung openings that allow for ventilation. While cabinet manufacturers may provide the bungs for ventilation purposes, venting flammable liquid storage cabinets is NOT required or even recommended by any federal regulatory agency. Cabinet manufacturers include venting bungs for users who may be required to vent by state or local codes, individual company policies, insurance carrier policies or any other authority having jurisdiction (AHJ). Don't Vent Unless You Have To According to the National Fire Protection Association (NFPA) Code 30, Flammable and Combustible Liquids Code, venting a flammable storage cabinet […]