On Thursday, March 19, 2020 at 10:02:00 PM UTC-6, FZ wrote:
There are a few hundred oxygen masks and O2 tanks in a gliding community. Are those of any potential use in a CronaVirus emergency?

If the face mask and oxygen are used to help get someone in respiratory distress to an emergency room, then yes. Otherwise no. As already said, someone needing respiratory support will get all the oxygen they need once at the hospital. The bottleneck lies in the availability of ventilator machines to mechanically support/breathe for them if they are in sufficient respiratory distress. So far (as far as I know) the shortages do not include oxygen or oxygen masks.