The views expressed by me are for educational purposes only and do not establish a doctor patient relationship.
I am Mysticdoc, experienced Internal Medicine Specialist.
I am here to help you with your concerns.
Yes Advair HFA needs to be kept away from moisture as well.
You can keep the HFA in the moisture protective pouch.
You can then keep the pouch in the bathroom.
That should be fine.
Only if you keep in a moisture protective pouch, then bathroom is fine, otherwise not.