I took a class today on ventilators. It was a good class that demystified things quite a bit. In the end, it sounds like the most important thing to remember is that if the machine is not working, remove the ventilator and bag the patient until somebody can fix the machine.
I walked to my class, which started at 7:00am. This is a photo taken on my walk, at about 6:20 (on my way to get my americano).