Isolated Chemical Oxygen Self-rescuer is individual breathing protection equipment which is made based on the principle of oxygen generation by chemicals. Miners use them to self-rescue when it is oxygen-poor or toxic gas threats their life in coal mine. Protection time(min):Medium labour intensity30min Sit quietly120min The oxygen concentration in breath:21% The Co2 concentration when exhale:3% The temperature in breath(°C)60°C Ventilation resistance(pa):196pa Production weight:1900g Production size:166*158*83mm
