I purchased the AirSense 11 AutoSet CPAP machine bundled with the built-in heated humidifier (“HumidAir”) and standard tubing. Adaptive Auto Pressure: The AutoSet feature effectively adjusts the pressure dynamically throughout the night, responding to changes in breathing. Makes it feel more natural and less “forced. ” Built-in Humidifier (HumidAir): The heated humidifier helps a lot with dryness (throat, mouth). Much more comfortable than using a dry CPAP setup. Quiet Operation: It’s pretty whisper-quiet. Noise level is low (specs say ~27 dB), so it doesn’t disturb sleep (mine or my partner’s). Good Features: The “For Her” algorithm (softer ramp up of pressure) is a nice touch. The compatibility with standard tubing, and the option to upgrade to heated tubing or auto climate control if needed helps flexibility. Easy to clean and maintain; parts are replaceable on a regular schedule.