Aye, I’ve also had plenty of time in firefighting BA over my Naval career - in the 90’s the training at the fire school involved big metal fake-sections-of-ships with different levels and compartments, and they would get set on fire, left to cook for a bit, then you’d go in as teams to put it all out. The greasy smoke left you caked even though you had all the gear on and at the end of the day everyone looked like they were wearing eye-liner, even after a shower
If an air bottle whistle goes off when in Remlok, then I’ll have a bit of a flap