Hello Regina - It will be very interesting to hear what the experts at NJH have to say about salt rooms.

It is an interesting concept for sure, but I don't think I would consider it in place of 7% saline nebs for a couple of reasons - first, the unknown quantity of salt actually reaching deep into my lungs, second, the fact that it isn't a daily deal, and third the cost - here it is at least $30 per session. That pays for a whole month of my saline solution.

I haven't been able to find any research studies or papers, either pro or con, and don't know if it is just because the concept is new to the mainstream or what.
Let us know what NJH has to say.
Sue