3 ms·

Related similar study: "Simple Respiratory Protection—Evaluation of the Filtration Performance of Cloth Masks and Common Fabric Materials Against 20–1000 nm Siz

by s1mon 7y ago

Related similar study: "Simple Respiratory Protection—Evaluation of the Filtration Performance of Cloth Masks and Common Fabric Materials Against 20–1000 nm Size Particles" talks about SARS and H1N1 sized threats. https://academic.oup.com/annweh/article/54/7/789/202744?fbclid=IwAR1STqBScwET_nBy2T7vnXUioLcnNGeHDyBABRK7NPf4EMW9g5r7Z3PmRVs https://academic.oup.com/annweh/article/54/7/789/202744?fbcl...