Abstract: A system for delivering oxygen enriched air to a selected location on an aircraft may include: a gas separation system configured to output a flow of the oxygen enriched air; an environmental control system configured to output a flow of conditioned air; and/or first, second, and third ducts. The first duct may be configured to direct the flow of the oxygen enriched air to the third duct. The second duct may be configured to direct the flow of the conditioned air to the third duct. The conditioned air and the oxygen enriched air may be mixed in the third duct. The third duct may be configured to direct the mixed conditioned and oxygen enriched air to at least one dispensing station at the selected location that is configured to dispense the mixed conditioned and oxygen enriched air to users of the at least one dispensing station.

Abstract: A system for providing an oxygen enriched localized environment in a user compartment on an aircraft that can include a gas separation system having an oxygen output channel that outputs a flow of oxygen enriched air, and a duct network coupled to the oxygen output channel and to direct the flow of oxygen enriched air to the user compartment, localized volume.

Abstract: A system directing oxygen enriched air to locations on an aircraft. A nitrogen generating system may be configured for generating nitrogen enriched air and oxygen enriched air.