NO: Microwaving a fabric protective face mask in a plastic bag for several minutes will not sanitize it.
YES: Doing this can melt plastic and burn the fabric — and can cause a fire if the mask has a metal wire. (Sewing pipe cleaners or twist-ties, both of which contain metal, into the top and bottom edges of a homemade mask has been suggested as a way of helping to ensure a tighter seal around the nose and mouth
YES: Many people said that they tried this — and posted pictures of the aftermath on Facebook:
Credits: Washington post