All that diving stuff goes out the window with an SCBA mask in a fire type situation, and the only thing I've seen.
My SCBA lenses have always been treated but even that sometimes fails. Quick burp of the bypass valve clears her up quick
Yep, but since I"ve gone to defog it, I don't have to burp the valve... good things.
What do you treat your SCBA with? Or are you saying the come pre-treated? Ours evidently do not.