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Message: <blockquote data-quote="jb747" data-source="post: 2126904" data-attributes="member: 24168">I doubt that the fire risk was any greater than it would be with pressurised oxygen. Handling it is a different matter. It went through a couple of pressure reduction phases before getting to the mask. It was a pure oxygen system, which always delivered 100% to the mask, without any ambient mixing. So very different to the gaseous systems in the military or civil worlds.I know a bit about that event. What, specifically, do you want to know?</blockquote>