Today crews are betting their lives and those of the pax that mx has opened the bottle if there's a depressurisation.
Helios lost that bet and we may be looking at a repeat.
No. That is not what happened in Helios. It was nothing to do with mx opening a bottle.
I won't discuss Helios anymore on this thread for fear of thread drift but you may mislead people with that statement so it needs correcting. If anyone wants to know about Helios there is plenty of info online, none of it will mention mx not turning on an oxygen bottle.