1.pressure gauge,flow meter,humidifier bottle 2.favorable ... the flow after the high pressure gauge shows the pressure of the oxygen cylinder.3.No drastic shock, ... Specification1.Forbid to use the Buoy Type Oxygen Regulator to take oxygen atomization treatment.2.Forbid to dismount by yourself ... 3.The defects liability period is 18 months. GasType:oxygen Input Pressure: 150bar Output Pressure: 2bar -3bar ...