Fisher & Paykel Vitera Full Face mask without Headgear, which features unique technologies designed to provide you with comfort throughout the night. Vitera features the RollFit XT seal, headgear with technology, and a low-profile stability bar. This mask includes a gentle seal designed to adapt with you as you move. is designed to allow heat and moisture to escape through the fabric to help keep you cool and comfortable as you 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 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.