PerformaTrak Mask, Full Face, with Cap StrapSimilar Item to Consider Medline NIV Full Face Mask with Headgear, Antiasphyxia Valve, Nonvented Medline NIV Full Face Mask with Headgear, Antiasphyxia Valve, Vented Medline NIV Full Face Mask with Headgear, Nonvented Features & Benefits UOM 1 EACH PerformaTrak's adjustable forehead support is designed to minimize mask force at the bridge of the nose while maintaining an appropriate seal This helps resolve problems associated with mask interface