MICiTECH 5L Oxygen Concentrator Model CP501 With PSA technology to make oxygen, 0.5L-5L/Min oxygen concentrator. Our oxygen concentrator is energy-saving and safe to use. Specification Model No.: CP501 Pressure: 40kpa-60kpa Flow: 0.5L-5L/min Purity: 93%�±3% Weight: 14.5kg Noise: ï¼?45dB(A) Power consumption: 360VA Dimension: 400mm*300mm*540mm Voltage/Frequency: 220V/50Hz�±1Hz or 115V/60Hz