
That’s the most common fer sure for Air Life, Air Link , local fire/EMT’s etc. But seeing the pic reminded me of a cousin who needs full time Oxy. He has a rack in back of the minivan that holds at least 10 bottles. At his home he dedicated a bedroom to storing spare bottles. I ain’t saying he’s thick-headed, nope, no sir, not saying that, but I tried to explain “concentrator” to him. Gave him a better regulator than the one he was using. The whole conversation went right straight thru his ears. Never even slowed down. Still has bottles everyplace?