OC-S100 10L oxygen concentrator for home care w/timer, large LCD, purity: 93+/-3%, Intelligent ... of oxygen concentrator in Chinaoxygen concentrator for medical use OC-S100 10L w/timer,for home care LTOT.Specification*Model OC-S100Operating ... Low Pressure,Temperature,Current overload or line surge shutdown, Thermal Switch, 40 psig Pressure Relief ValveStatus Display ScreenLarge scale LCDNet weight ...