Model 7600 Series -Vented with Anti-Asphyxia Valve(AAV) Oro-Nasal Mask

7600 series V2 Adult Oro-Nasal (Full Face) CPAP/Bilevel Ventilation Mask with Anti-Asphyxia Valve (AAV), Swivel Port and Headgear. Includes Silicone rubber face mask and Polycarbonate(blue) Swivel Port and AAV. Five sizes available.