Nanofiber filter captures almost 100% of coronavirus aerosols

A filter made from polymer nanothreads blew three kinds of commercial masks out of the water by capturing 99.9% of coronavirus aerosols in an experiment. The study compared the effectiveness of surgical and cotton masks, a neck gaiter, and electrospun nanofiber membranes. The cotton mask and neck gaiter only removed about 45%-73% of the aerosols. The surgical mask did much better, removing 98% of coronavirus aerosols. But the nanofiber filter removed almost all.