1.Protective time :4 h 

2.Oxygen cylinder rated working pressure:20Mpa (steel cylinder)

3.Oxygen cylinder capacity :2L

4.Oxygen supply ration:(1.4+-0.1)L/min 

5.Automatic supply oxygen:more than 100L/min 

6.Manual supply oxygen :more than 80L/min 

7.Autimatic exhaust pressure:98~294 Pa

8.Automatic supply opening pressure :-98~-294 Pa

9.Size:455*375*165

10.Weight :12.8KG