Product Model: S 35 Breath Ai Oxygen Generation System: Imr- Oxygen Generation System Rated Power: 770va Rated Power: A.c.220 V-50 Hz Rated Current: 3.5a Oxygen Concentration: Ã??Â¥93% (v/v)(20l/min) Oxygen Flow: 20l / Min Adjustable Oxygen Outlet Pressure: 20-70kpa Operating Noise: