Place of Origin : China Instrument classification : Class I, Class II Medical Grade Warranty: 2 years After-sale Service : Online technical support Product Name : portable oxygen concentrator Oxygen density : 93% + 3% across all flow rates Compressor life :15,000hours Power Consumption : 580W Power Requirements : 220 V/50 Hz ,110V/50Hz ,230V/50Hz Machine Size : 43*38*72cm Net Weight : 23kgs Usage:Home+office+travel,medical
