Headgear assembly for a respiratory mask assembly

摘要

The present invention relates to a respiratory mask assembly for delivering breathable gas to a patient includes a frame and a headgear assembly removably attachable to the frame. The headgear assembly includes a pair of side portions and a rear portion that interconnects the pair of side portions. The pair of side portions includes at least one strap. The rear portion includes an intermediate strap arrangement comprising a stiffener.