Maximum flowrate recommended: 7L/min Oxygen Output Concentration Levels: 93%-3% Flowrate range: 0.5-7L/min Flowrate change at maximum recommended flowrate with 7 Pa back pressure: <0.7L/min Outlet pressure: 20kPa-50kPa nput Power Consumption: 700VA Electrical Requirements: AC220V+10%, 50Hz+1Hz Operating noise: <60dB(A) Spo, Measurement Range: 0%0-100% Pulse rate Measurement Range: 30bpm 250bpm