Which DIY masks are most effective?

If you are looking to make your own face mask, quilting it may be the way to go.

Researchers at Florida Atlantic University measured how effective different DIY masks are.

EFFECTIVE DIFFERENT D-I-Y MASKSWERE...AND WHICH FABRICS BETTERPROTECTED PEOPLE FROMPARTICLES.THEY FOUND A WELL-FITTEDSTITCHED MASK...MADE WITH TWO LAYERS OFBANDANA...T- SHIRT... OR SIMILAR FABRIC.SPREAD VIRUS-V