Planes Don't Carry Tanks Of Oxygen. So What's In Your Emergency Mask?
https://www-newz.blogspot.com/2015/04/planes-don-carry-tanks-of-oxygen-so.html
You're on a plane. The oxygen masks have dropped. While you're screaming and crying, does it occur to you to wonder where that oxygen comes from? It's not a scuba tank. Here's how weed killer, fireworks, and candy destroyers keep you alive.
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