@cousteau1827 There has been discussion on this Mayo Connect on one of the threads but I am not sure which thread.
Hopefully someone who may have done the salt room therapy or knows more about it will find your post question.

I have not tried it but do know about it. Some people have and do the salt room however others prefer to avoid it.
I think some of the things to consider, but not all, are the cleanliness of the salt therapy room and how well they manage it and then protecting yourself by masking if others are in one room with you.
Barbara