Benefits of Silk Masks

Scientific Study finds combination of silk and cotton with good fitting make the best protection: https://www.newsweek.com/best-homemade-face-masks-covid-19-cotton-silk-study-1500059

https://www.forbes.com/sites/allisongasparini/2020/04/27/how-effective-are-cloth-face-masks-anyway-here-are-the-fabrics-which-filter-out-airborne-particles-best/#2adc0a4333ce