Why are You always so worried about starting a FIRE! in a vacuum container,
Bissle anyones.
wrote in message
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I think one of the main advantages of the masks would be in a case where
there was smoke in the cabin that was causing respiratory distress to
the passengers before they had a chance to land and evacuate.

Pat

Well according to the TV show Air Emergency on national geographic
pilots are trained to NOT deploy the emergency oxygen in case of
smoke / fire since it will just feed the fire.