A respiratory mask assembly for delivering breathable gas to a patient includes a frame having a main body and a side frame member provided on each lateral side of the main body. Each side frame member includes an integrally formed first connector portion. A headgear assembly is removably attachable...http://www.google.co.uk/patents/US7341060?utm_source=gb-gplus-sharePatent US7341060 - Ergonomic and adjustable respiratory mask assembly with headgear assembly
