Dual-Wall Nasal Pillows: The Liberty uses dual-wall nasal pillows with trampoline action to adapt to different nostril sizes and different nose-to-mouth heights, angles and nasal contours. The pillows' thin outer walls are soft and comfortable and their thick inner walls ensure support and an effective seal. Airflow between the two walls helps the pillows to continually adjust to contours within the nostril. Each pillow sits gently at the entrance to the nostrils and moves independently of the other for a secure, stable fit. The Liberty's oral dual-wall cushion provides exceptional seal and accommodates jaw movement, eliminating the need for most chinstraps.
Easy to Wear, Easy to Clean: Headgear for Liberty keeps it shape when removed so that it's easy to put on and easy to take off; and fewer parts than most masks mean it's easy to assemble and disassemble for cleaning.