The product complies with the national standard XF124-2013 "Positive Pressure Firefighter Breathing Apparatus". It has the national inspection report and fire product certification. This product is mainly used by firefighters or rescue personnel to perform firefighting, rescue, and emergency medical services in environments with smoke, toxic gases, steam, and oxygen deficiency. It is an ideal personal breathing protection device for such personnel. Key features include high-temperature resistance, flame retardancy, insulation, corrosion resistance, waterproofing, light weight, and good air tightness.