The 3 layer mask including a layer of surgical mask fabric and masks modified with breathable panty shield were sadly not included in the study, but it’s worth a read.
With thousands of brands, styles, materials, and modifications to select from, it’s hard to know which particular masks do the best job of preventing droplets from spreading. That’s exactly why a group of researchers from the University of North Carolina at Chapel Hill decided to put a range of masks to the test. For a study published by the journal JAMA Internal Medicine in December, they set out to find the most and least effective masks, and found that one of the most popular and prevalent styles is ranked at the bottom of the list for efficacy. Read on to find out how your mask ranks…
Source: The Most Popular Mask May Also Be the Least Effective, Study Finds