Model: YG15-0.7, YG15-1.3, YG15-2, YG15-4 Service medium: oxygen Capacity: 0.7L, 1.3L, 2L, 4L For medical use, completed with regulator and standard breathing mask. Model: YG15-0.7, YG15-1.3, YG15-2, YG15-4Service medium: oxygenCapacity: 0.7L, 1.3L, 2L, 4LRated flowrate: 12L/minNominal flow rete: 0-12L/min Medical oxygen supplier, medical oxygen apparatus