7700 Series Non-Vented with Anti-Asphyxia Valve (AAV) Oro-Nasal Mask
7700 series V2 Adult Oro-Nasal (Full Face) Bilevel Ventilation Mask with Anti-Asphyxia Valve (AAV), No Exhaust Vents, Swivel Port and Headgear. For use with BiLevel Ventilation Systems that provide the patient vent in the circuit. Includes Silicone rubber face mask and Polycarbonate(yellow) Swivel Port and AAV. Five sizes available.