The present invention discloses a nasal mask assembly that includes a seal member defined from a unitary piece of elastomeric material. The seal member defines a nose receiving cavity and has a first end portion and a second end portion generally opposite the first end portion. A first opening in the...http://www.google.com/patents/US6959710?utm_source=gb-gplus-sharePatent US6959710 - Nasal mask and system using same
