INTERFACE COMPRISING A NASAL SEALING PORTION

摘要

An interface for positive pressure therapy includes a mask assembly and a headgear assembly. The mask assembly comprises a mask seal that is adapted to underlie the nose and extend up the lateral sides of the nose to define an upwardly open valley in which the nose sits and wherein the nose of the user is exposed. The mask seal has a primary seal below the nose and a secondary seal alongside the nose.