(March 29, 2020 at 5:50 pm)BrianSoddingBoru4 Wrote: I did a little research about the kinds of masks required to prevent viral transmission, and I have to go with OLB in this one. The great majority of people who can sew possess neither the materials nor the expertise for this.I do have a bit of experience with filters...
If we were facing a worldwide shortage of desperately needed dust masks, I’d be in the thick of it.
Boru
I.e. 20+ years of searching for the best gravity flow thru filter fo r maple syrup. (10 micron polyester bags)....
Just using whatever scrap cloth you have on hand isn't likely to be effective.