Most of this discussion happened in this thread back in January so you probably missed it:
•Masks ran out in China early on, of course.
•Chinese pages popped up instructing other Chinese on how to order from US Amazon and medical supply places abroad. Nothing wrong with that. They need masks. We had masks.
•Amazon and the medical suppliers ran out of stock first, leaving contractor supply and hardware stores where availability was already spotty due to proxy buyers cleaning out random localities. This happened before many in the west even knew what was going on.
•The looming wider shortage was predicted by reports from those in-the-know with direct links to these Chinese sites. The Amazon shortage was already a thing.
•As the shortage worsened CNN and others misattributed it to American panic-buying and hoarding, even writing articles telling people that it was no more deadly than the flu (early on, remember?) and that they should not be buying masks while they still can.
•Those who knew better knew that it was far worse than the flu, was not contained, and that the masks would be long-gone by the time it gets here if they didn't get their masks immediately. Those who stuck with mainstream news would not realize the issue until later: When/if the disease comes here, the masks will already be gone.
My brother was in Thailand where he already needed to have a mask (second-worst outbreak at the time) so he already had masks. For my mother and myself, I secured two masks from Lowe's before telling others that Grainger, Lowe's, Home Depot, McMaster-Carr, etc would still have them but not for long. Only two. One for me, one for my mother. A less-than-reasonable amount. Not hoarding or scalping or panic-buying, since I can use them for my other projects regardless of whether or not the virus ever becomes a concern here and, if anything, I could justify buying MORE.
I considered ordering a contractor pack since you are supposed to replace them every few hours but deliberately did not since I knew that China really does need those more than we do right now. It wasn't a case of American panic-buying and depleting stocks. It was calm, rational, free-market dynamics.