Well, my point I guess is that not all patients experiencing respiratory distress rise to the level of needing intubation.
Machines like the Bird Mark 10 could relieve the load, and maybe take care of patients who's needs don't rise above needing a nasal cannula or mask.
Maybe some of those machines have been sitting a long time, but they're even easier to overhaul than a Marvel Schebler tractor carburetor.
I was a volunteer in the Candy Striper program in the Repiratory Therapy section at Swedish-American in Rockford. And no, I didn't get to wear the little red and white dress. I worked down in the shop breaking those machines down, clean, sterilize, put them together and test them.