For use with the cough machine.  Anesthesia masks with rounded nose bridge and ergonomic cushion to ensure comfortable clinician grip and optimal patient seal.  Color-coded hook rings for easy size identification are removeable.  Top-side valve loaded with a metallic spring to prevent deflation.  Provides superior seating and sealing characteristics.  Clear body permits easy patient observation. Connector port is centered and positioned for secure gripping. Easy connect/disconnect surface. Flexible body allows gentle deep seating of cushion to face. Hook ring is removable.  Multi-adapter (sold separately) is required to attach this mask to your tubing.