in case not covered elsewhere-
some more ‘make your own’ mask resource.
This one references a study on effectiveness of common materials;
and this one
https://www.sewthecurveflat.com/
and this one
https://www.joann.com/make-to-give-response/
in case not covered elsewhere-
some more ‘make your own’ mask resource.
This one references a study on effectiveness of common materials;
and this one
https://www.sewthecurveflat.com/
and this one
https://www.joann.com/make-to-give-response/