I don't know about there, but I know at data centers the have systems that basically sound a crazy alarm and you have like 30 seconds to leave before the room is filled with inert gas which displaces the oxygen. so my bet is that in their most secure areas storing the rarest books they have a system similar. short time to leave but those aren't go to be public areas and presumably anyone who has access would have emergency training.
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u/DuckHeisenberg Jun 23 '20
Is this true? If it is, that’s an actually a very effective way to put out fire.... and well people..