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The Insider interviewed Shira Shafir, UCLA Fielding School of Public Health associate professor of epidemiology, on which face masks are most effective.
The most effective kind of fabric face mask is a stitched mask with a tight fit. Though bandannas are better than nothing, the fact that it doesn't offer a tight fit at the bottom of the face makes it a poor choice for a face covering. If you don't have the skills to stitch a mask and don't want to spend any money, creating a makeshift face covering with a folded handkerchief is a good option.
Face masks are now the new normal. And we have a pretty big variety of face coverings to choose from including medical-grade face masks to home-made ones. Fabric face masks, in particular, have become widespread and easily available for the general population. But some fabric face masks are more effective than others at preventing your germs from spreading.
Researchers have conducted numerous studies to determine which face masks are most effective. Here, we've looked at the data from various studies and spoken with multiple experts to pinpoint which fabric face masks are best.