Includes ResMed AirSense™ 10 AutoSet Card-to-Cloud (C2C) auto-adjusting pressure machine with built-in HumidAir™ humidifier and downloadable data via SD card included in device. Purchase does not include CPAP mask or replacement tub. Prescription required.About AirSense 10 AutoSet Card-to-Cloud:Auto-adjusting PAP machine changes airflow pressure levels throughout the night based on your needsBuilt-in humidifier and Climate Control auto setting provide breathing comfortUser-friendly controls and an intuitive interface make it simple to navigate settings and the nightly sleep report AutoRamp ™ feature delivers a low airflow pressure to help you fall asleep, then steadily increases to your prescribed levelProvides advanced event detection, including central sleep apnea and Cheyne–Stokes respiration detectionDevice data can be downloaded via included SD card to upload into AirView™ or ResScan™ About the HumidAir heated humidifier:Humidification is designed to provide comfortable therapy, while preventing dry mouth and congestionIncludes standard tubClimate Control auto setting controls the humidifierPersonalize your settings to find the level of humidity that’s most comfortable for youOptional cleanable replacement tub can be used in place of the standard HumidAir tub.