Regarding the science topic of Zeolite, here is a Wiki about Oxygen Concentrator systems, such as used in medical devices. I don't know the science, just able to find. I'm curious about additional applications and if this was linked to the crash. Medical industry? Maybe, maybe something else.
Oxygen Concentrator
https://en.wikipedia.org/wiki/Oxygen_concentrator
Zeolite
https://en.wikipedia.org/wiki/Zeolite