Effective protection time: 4h (medium labor intensity) Rated operating pressure of oxygen cylinder: 20MPa Volume of oxygen cylinder: 2.4L
Oxygen volume: 480L

Volume of calcium hydroxide to fill: 2.1Kg
Overall dimension: 560mm×370mm×160mm
Weight: 10Kg (exclude calcium hydroxide and oxygen)

OBA isolated positive pressure oxygen breathing apparatus are mainly suitable for poisonous and harmful gas of coal mine, fire fighting, chemical industry, tunnel, scientific research and high-rise buildings, rescue and relief in anoxic disaster environment and seek for expedition.