As we're likely to be wearing them for some time going shopping, rather than a conventional mask, which are a bit of a pain, my wife bought me two of these. "Proskins Slim Snoods" You can just pull it over your head before you go out and then before going into each shop, you can pull it up to cover your nose and down again as you come out. Beats all that fiddling with the loops around your ears and many of the masks are uncomfortable or don't seem to fit properly They're a pain for anyone who wears glasses or has a hearing aid, like one of our friends.. These photos are from Idealworld's web site. They were on promotion but are still only £9.99. They're a very soft stretchy lycra. You can of course wash them and spray them with a sanitiser. Mine are black.
But face coverings which are all we are required to wear when shoppng, don't. See the first line of my original post! You can just use a scarf if you wish.