It comes with CPAP and APAP therapy modes with auto ramp function Equipped with an in-built humidifier along with a pre-heating function Makes the therapy comfortable, by reducing the treatment pressure upon exhalation Equipped with energy saving mode and an auto power on/off thereby improving the machine durability Has high-resolution SD card data storage wireless transmission enabled through Wi-Fi, Bluetooth and GPRS* BPL Harmony comes with auto altitude adjustment and auto screen luminance adjustment*