Ukuthengiswa kwamamaski okuvikela ekilasi le-KN95 aqinisekisiwe anezitifiketi ze-CE, i-FDA kanye ne-ISO kuzovikela umuntu ogqokile ku-95% wezinhlayiya ezihamba emoyeni ezinobubanzi obungu-0.3 μm noma ngaphezulu. Iphinde ilingane ne-American N95 respirator. Ama-respirators nawo anconywa yi-WHO ukuthi akhuphule ukuvikeleka ekuthelelekeni nge-coronavirus.