An adjustable forehead support for a nasal mask. The present invention discloses an adjustable forehead support for a nasal or full-face mask wherein the forehead support may be adjusted for the different shapes and sizes of a facial profile. The forehead support utilizes a dual-arm system which adjusts...http://www.google.fr/patents/US6997188?utm_source=gb-gplus-shareBrevet US6997188 - Forehead support for facial mask
