Portable Foam Fire Extinguisher is a common fire extinguishing equipment for extinguishing flammable liquid and solid fires. It consists of a pressure vessel, foam nozzle, foam liquid and Pressure Gauge. When in use, the foam is sprayed toward the fire source through compressed gas, forming a layer of foam covering the surface of the flame, isolating oxygen, and thus extinguishing the fire source. Portable foam fire extinguishers are widely used in homes, businesses and industrial places.