Patent ID: 8261745

Claim:
A respiration assist mask, comprising: a ventilation interface including a gas entry port defined in the ventilation interface; a positive gas pressure source tube coupled to the gas entry port of the ventilation interface to facilitate supplying a gas to the ventilation interface; a cushioned facial interface connected to said ventilation interface, the facial interface having a gas exit shaped to gas-tightly seal only the mouth from the environment, the cushioned facial interface comprising at least one first exterior membrane that facilitates providing a seal across an upper lip and around a mouth of a user, and at least one second interior membrane positioned adjacent the at least one first exterior membrane such that a distance is defined therebetween, wherein the entire portion of the at least one first exterior membrane that facilitates providing a seal across an upper lip of a user has a first edge that extends toward the gas exit shaped to gas-tightly seal only the mouth that does not extend further than an adjacent second edge of the at least one second interior membrane; at least one removable nasal insert removably coupled in flow communication to an orifice in an upper portion of the cushioned facial interface; and a cavity defined within the cushioned facial interface between the gas entry port and an end of the at least one removable nasal insert farthest from the cushioned facial interface.