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Mask apparatus

  • US 20050121030A1
  • Filed: 03/05/2003
  • Published: 06/09/2005
  • Est. Priority Date: 03/08/2002
  • Status: Active Grant
First Claim
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1. Mask apparatus including a generally ring-shape sealing assembly adapted to be retained with the head and to seal around at least the mouth of a user, and a gas inlet for supplying gas to the apparatus, characterized in that the sealing assembly has a central opening located in the region of the mouth, and a removable closure for securing with the central opening, and that the gas inlet is mounted with the closure.

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