Oxygen concentrator system and methods for oral delivery of oxygen enriched gas

An oxygen concentrator system, comprising:

• at least two canisters;
• gas separation adsorbent disposed in at least two canisters, wherein the gas separation adsorbent separates at least some nitrogen from air in the canister to produce oxygen enriched gas;
• and
• a compression system coupled to at least one canister, wherein the compression system compresses air during operation;
• at least one conduit coupled to at least one canister, the conduit receiving oxygen enriched gas from at least one canister during use;
• and
• a mouthpiece, removably couplable to one or more teeth in a user's mouth, wherein the mouthpiece is coupled to at least one conduit,
• wherein oxygen enriched gas is directed to the mouth of the user via the mouthpiece during use.

A method of providing oxygen to a user of an oxygen concentrator, the oxygen concentrator comprising:

• at least two canisters;
• gas separation adsorbent disposed in at least two canisters, wherein the gas separation adsorbent separates at least some nitrogen from air in the canister to produce oxygen enriched gas;
• a compression system coupled to at least one canister, wherein the compression system compresses air during use;
• at least one conduit coupled to at least one canister, the conduit receiving oxygen enriched gas from at least one canister during use;
• and
• a mouthpiece, removably couplable to one or more teeth in a user's mouth, wherein the mouthpiece is coupled to at least one conduit,
• wherein oxygen enriched gas is directed to the mouth of the user via the mouthpiece during use.
• the method comprising:
• placing a mouthpiece in a user's mouth;
• generating oxygen enriched gas by passing air into one or more canisters;
• and
• providing at least a portion of the oxygen enriched gas to a user's mouth through at least one conduit coupled to the mouthpiece.