Pictures: FY5-B medical oxygen concentrator main specification: ModelFY5 - BRated Flux (L/min)5Oxygen Content (%)90±3Outlet Pressure (MPa)0.04-0.06VoltageAC 230V/220V/115V/110VFrequency50Hz/60HzSound Level (db)≤43Nebulization Rate(ml/min)≥0.2OptionalInput power (W)400Net Weight (Kg)24.3Dimension (mm)390×375×690Optional FunctionRemote Control Adjustable Timer Liquid Crystal Display DeviceMultiple flow; Oxygen Display; High or Low pressure Display Device.