The truth and tragedy of oxygen masks in planes

I’ve thankfully never been involved in a plane accident so I’ve never needed to use an oxygen mask. I have watched my fair share of cabin crew demonstrations so I kinda know what to do in the event of an emergency. But that’s all I know about oxygen masks on a plane. Turns out I knew very little after I watched the above video by Reactions.

Dr Alex Dainis explained where the plane oxygen comes from—a chemical oxygen generator—and when the canisters that hold those chemicals caused ValuJet Airlines Flight 592 to crash, killing all 110 people on board.

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