#9 Those emergency oxygen masks are meant to work for 15 minutes only.
Theoretically, it takes 15 minutes to bring the airplane down to an altitude where people can breathe without the masks. Theoretically.
#9 Those emergency oxygen masks are meant to work for 15 minutes only.
Theoretically, it takes 15 minutes to bring the airplane down to an altitude where people can breathe without the masks. Theoretically.
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