Composed of the main body,flow meter and humidifier. Full plastic casing,safe and reliable. Remote-control function to operate remotely. Cumulative time function to show total working time time by display. Single timer function for real-time control of a single oxygen inhalation time. Timed shutdown function for easy use. Function of releasing anion. Heat protector equipped in the compressor. Power Supply: AC220V±220V/110V±11V,50HZ/60HZ±1HZ    Input Power: ≤200VA Oxygen Concentration:30%-90%（When oxygen flow is 1L/min,oxygen concentration ≥90%) Oxygen Flow:1L/min-5L/min Noise:≤60dB(A)  This is home use oxygen concentrator, which had  SmartTouch multifunctional oxygen concentrator. It has been specially developed to provide a dependable, convenient source of supplemental oxygen for therapeutic needs. Suitable for both children and adults, it offers concentration up to 96% and flow rates reaching 1 LPM.