A recent study shows that masks made with a combination of tightly woven cotton and natural silk filtered out 80% to 99% of aerosol particles. The cotton mask acts as a mechanical barrier to particles, while the natural silk holds a static charge that serves as an electrostatic barrier. The electrostatic effect sucks in and holds onto the tiniest particles, so they don’t slip through holes in the cotton. Here’s the report: https://news.uchicago.edu/story/homemade-masks-made-silk-and-cotton-may-boost-protection
Safety Silk Inserts are two layers of natural silk, designed to fit perfectly inside your Chrysalis Face Mask. You won’t even know it’s there because the silk is so breathable and soft. To preserve the electrostatic quality of the silk, and wash the Safety Silk Insert in cold water; do not wring. Use a gentle soap without bleach, peroxide, or citrus, since harsh additives can break down the silk fibers. Hang to dry. No need to buy more and more filters – with just two, you can swap them out daily.