There are 25 CPAP machines for sale on craigslist Orange county, probably a go-zillion of em sitting in people's closets that aren't used anymore. I have a spare machine just in case.
cheeeep and readily available.
Now watch, some doosh will try to hoard them all
If nothing else, maybe they could be used as a stop-gap for people who need respiratory assistance but aren't bad enough to need a full-blown ventilator yet.