Here in Atlanta, several hospitals have asked skilled seamstresses to sew cloth covers for N95 masks. The N95 masks are supposed to be used only once, but there is a shortage, so they are being cleaned. The cloth covers extend the life. The covers are laundered. These covers are shaped like the mask and include filter pockets and an inset for a nose wire. Children's Healthcare wants 10,000 of them.
So, my wife is cutting and stitching away with a sewing machine that is as old as I am. But it still works!
You might want to check this video from Bob Greenyer, which is based on a Nature publication for creating an active layer of protection in breathing masks.
I think we have also to stress the need for eye protection, but there are not much alternatives. Specially for people that, like me, are in need of optic glasses.