Yeah, I could see this coming a couple of weeks ago, as in public transport, any shops (non food) that are allowed to open, parks etc.
So I bought a couple of boxes just in case, only the basic surgical masks, as if this sort of thing happens you will not be able to get hold of them for love, nor money, some suppliers had no stock even then.
I think the reason the government has fought shy over saying the public must wear them when they go to the supermarket is that it would be encumbent on them to supply them, and with a population of 68 million how the fuck would that happen with single use masks.........