The Aloha CPAP Mask gives users the unique ability to adjust both the angle and depth of nasal pillows -- improving comfort and seal while minimizing potential discomfort. In addition the Aloha's ball-and-socket elbow adapts to the most active sleepers and accommodates a variety of sleeping positions. Each Aloha Mask FitPack comes with 3 pillow sizes (Small, Medium, Large) to ensure you can find your best fit right out of the box.