Self-contained open circuit air breathing apparatus

Gas cylinder capacity: 6.8L Working pressure: 30mpa The ambient temperature: -30℃-60℃ Inhalation resistance≤500pa, Maximum air feed is 200l/min,The internal pressure of the machine is higher than atmospheric pressure when working Alarm alarm pressure 5.5±0.5mpa Pressure reducer output 0.5-1.0mpa, relief valve opening pressure 0.8-1.2mpa