With the patient at the center of our design philosophy, the key focus areas for Vitera's design included stability, adaptability, and breathability. We believe that mask performance is multi-faceted and that the technologies within the Vitera mask work in harmony throughout the night for effective therapy and ultimate comfort. Successful CPAP therapy begins with choosing the right mask. Stable and secure with dynamic support: The zone of support provided by the stability bar allows the RollFit XT cushion to adjust and seal dynamically. Freedom to move with RollFit XT: The RollFit XT seal allows the mask to dynamically adapt as patients move during the night, keeping the seal in place, as well as reducing pressure on the bridge of the nose. The RollFit XT seal extends 93% further than the previous generation RollFit seal. The RollFit XT seal shape has also been designed to fit a wide range of face shapes and minimize leaks into the eyes. Keep cool and comfortable with VentiCool: Perspiring during sleep is a well-known symptom of patients with obstructive sleep apnea. Vitera headgear features proprietary breathable fabric that allows 24 times more airflow and 35% more moisture transfer than the material used in our leading range of full-face masks. VentiCool technology helps to keep patients cool and comfortable during sleep. 93% of patients rated the Vitera as equally or more stable than their usual mask 88% of patients could sleep in their preferred sleep position throughout the night 90% of patients rated the Vitera as equally or more comfortable on the face compared to their usual mask