Patent ID: 8141649

Claim:
A method of a rapid providing of a breathable fire-suppressive atmosphere onboard of an aircraft, said method comprising: use of compressed atmospheric air in an air separation system for generating hypoxic gas mixture; said air separation system having a hypoxic product outlet and an oxygen-enriched fraction outlet; exposure of said oxygen-enriched fraction outlet to a negative pressure of an outside atmosphere at an aircraft altitude, in order to significantly increasing the productivity of said air separation system; said hypoxic product outlet communicating with an aircraft interior and transmitting said hypoxic gas mixture; said air separation system, being activated in case of a fire emergency, flooding protected aircraft compartments with said hypoxic gas mixture and establishing and breathable fire-suppressive atmosphere onboard for as long as needed; said breathable fire-suppressive atmosphere having oxygen content from 12% to 18% depending on the aircraft altitude.