#$%^&*AU2018200242A120180201.pdf#####TITLE: METHOD AND SYSTEMS FOR THE DELIVERY OF OXYGEN ENRICHED GAS Abstract of the Disclosure 5 Described herein are various embodiments of an oxygen concentrator system and method of delivering oxygen enriched gas to a user. In some embodiments, oxygen concentrator system includes one or more components that improve the efficiency of oxygen enriched gas delivery during operation of the oxygen concentrator system. 10 Page 38