Patent ID: 7909035

Claim:
A multi-chamber mask, comprising: a shell adapted to cover portions of a user's face comprising the user's mouth and at least portions of the user's nose comprising the nostrils, the shell comprising a custom-fit contact surface custom-shaped according to portions of the user's face surrounding the covered portions of the user's face, the custom-fit contact surface preventing gas from escaping between the shell and the contacted portions of the user's face, the shell adapted to couple to a gas supply source; and a partition coupled to the shell between first and second layers of the shell, the partition cooperating with the shell to define a first chamber and a second chamber, the first layer custom-shaped according to at least a portion of the user's nose comprising the nostrils, the first layer defining an inner boundary of the first chamber, the first chamber adapted to be positioned proximate the user's nose to direct inflow of gas from a gas supply source to the user's nasal passages through one or more openings in the first layer, the second chamber adapted to be positioned proximate the user's mouth, the partition preventing flow of gas from the first chamber to the second chamber.