Life gets the best of me and I forget to reply back to you wonderful folks! : )
@Clairmon - what @CHfather said, my prescription said, “Home Oxygen - 15L/min - non-rebreather, as needed for CH”
Take that to your local home medical supply store and see what they say. Let them know you will pay out of pocket without insurance. Once they had my card on file it was done - local manager didn’t care why corporate was saying. As long as they knew they were getting paid. I even perform the drop offs and pick ups. Now, I just walk in, with the tank/s, I have two E size tanks, and let them know I need new ones and they bring them out and I sign a paper and im off.
@FunTimes and @CHfather thanks again!
Also, thanks for the tips on cutting the strap off and closing the air vents on the mask!