Adopting the special designed air pump,it provides user stable 2-20hpa therapy pressure Lighted user buttons with lockupability APAP Technical Specifications:Device SizeDimensions:220x194x112 mm313x194x112 mm(with InH2 TM heated humidifier)Weight: <2kgProduct Use,Transport and Storageoperation Transport and StorageTemperature: 5 to 40°C -20 to 55°CHumidity: ≤80% Non-condensing ≤93 Non- ...