Technical Specifications
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Oxygen Concentration Range          21% ~ 100% (continuously adjustable)
Oxygen Concentration Accuracy       ±3% (V/V)
Adjustment Mode                     Knob adjustment, linear continuous control
Flowmeter Range                     0-15 L/min | 0-60 L/min | 15+60 L/min
                                    (multiple ranges available)
Flow Output Characteristic          Loss-free flow output
                                    (FiO₂ and flow independently controlled,
                                     no mutual interference)
Control Method                      Pneumatic / air-powered, fully mechanical,
                                    no electrical supply required
Input Gas Pressure                  4 bar
Reverse Flow Protection             Zero reverse flow
                                    (from one gas inlet to the other gas inlet)
Product Shelf Life                  10 years
Gas Supply Differential Alarm       Equipped with differential pressure alarm
Gas Supply Interruption Alarm       Equipped with supply gas interruption alarm
Alarm Device Type                   Built-in pneumatic audible alarm
                                    (buzzer / horn type)
Alarm Sound Pressure Level          ≥ 57 dB(A)
Interface Type                      Universal connectors, compatible with
                                    mainstream respiratory support equipment
Brand                               Kangxin