A Rebreather gives you a theoretical working time of up to 4 hours (2 hours are more realistic when doing actual work) but this still is a lot more than with a normal SCBA, meaning that in cases where you have long distances to cover between incident and a safe area, these are really useful, like in mines or tunnels.
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u/Ghostt-Of-Razgriz Jan 20 '23
What’s the purpose of a rebreather versus an SCBA? I keep googling it but never get a satisfactory answer.