This is a replacement for the QuietAir Elbow, a premium replacement swivel elbow designed specifically for the ResMed AirFit™ F20, AirTouch™ F20, and AirFit™ F30 full face masks. It reduces noise by up to 89% (down to 21 dBA) compared to standard elbows by using advanced, multidirectional vent holes to diffuse exhaled air gently.
