Some of my old back to the land hippie buddies up in remote Eastern WA, several ladies are making masks out of fabric they can identify as suitable for masks. They use them themselves and donate many to the local hospital district which sanitizes them and uses them for lower risk contacts. Are reputed to be quite a bit better than nothing.

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Te futueo et caballum tuum

1986 300SDL, 362K
1984 300D, 138K