RHZK Positive Pressure Breathing Apparatus is a kind of self-support one and it is extensively used in fire-fighting chemical, boat, petroleum, smelting, electric power, warehouse, laboratories, factories and mines. It provides breathing protection for firemen, persons participating in emergency rescues and disaster relief efforts, operators in heavy smoke, steam and oxygen deficient environments to carryon effective fire quenching, rescue and operation.(Supply with EC and CCS certificate.)