BREATHING ASSISTANCE APPARATUS

摘要

- 22 A mask assembly for supplying breathing gases to a user comprises a base portion and a body portion. The body portion comprises first and second nasal pillows, which are adapted to rest in a substantially sealed manner against a user's nares in use, and a lip extending from a distal 5 side of the body portion. The lip defines an area of reduced circumference around the distal side of the body portion. The body portion also comprises a stepped transition transitioning the distal side of the body portion to the area of reduced circumference. The base portion comprises a channel configured to receive a portion of the lip when the base portion is connected to the body portion. 24 - 25 '-41