I have 4 strops in the bathroom with no apparent damage.
A DD No. 50, DD No. 70 both 40 years old, a Geo. Worthington finish strop 70 years old (my grandfather's) and a top grain cowhide w/canvas I made myself.

Keeping the bathroom door wide open should take care of any humidity problem.

I also have 4 strops in the bedroom. It's entirely possible to work up a sweat in this room too.....

Jerry
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