Flow Specifications1 LPM- 5 LPMOxygen Concentrations93% (+3%, -3%)Power Consumption350 WattsVoltageAC 220 V/50 HzSound 50 dB (A)Dimensions13.4 in. W X 11.8 in. D X 25.6 in.H (34 cm W X 30 cm D X 65 cm H)Weight41.9 lbs. (19 kg)Environmental Limit ConditionsOperating Conditions 5C to 55CStorage -20C to 60CRelative Humidity up to 80% RH