
U.S. Commerce Dept. @CommerceGov
#BehindtheScenes video shows @NIST researcher Matt Staymates setting up the equipment he used to create visualizations of how face masks can block the spread of disease. — PolitiTweet.org
National Institute of Standards and Technology @NIST
To help prevent the spread of COVID-19, cover smart by wearing a face covering made with a few layers of tightly wo… https://t.co/bQAhhfSjY1