Breathing assistance apparatus

摘要

A CPAP system for supplying humidified gases to a user. Various interfaces are described for delivering the gases. A mask cushion including a deformable cushion and thin sheath is described. A forehead rest with a horizontal pivot is attached to the mask. An outlet vent to reduce the noise from exhausted carbon dioxide is described. A mouthpiece is also described with an outlet diffuser including Heat Moisture Exchanger Material.