Elisabeth Bik is in the Netherlands on Twitter: "Adding A Nylon Stocking Layer Could Boost Protection From Cloth Masks, Study Finds "Adding a layer that keeps the mask tight to the face
Nylons, coffee filters and more: How to get the most protection out of your homemade coronavirus mask | CTV News
Adding A Nylon Stocking Layer Could Boost Protection From Cloth Masks, Study Finds | KERA News