Are Face Shields Any Good?

Are Face Shields Any Good?

Face shields no match for sneeze vortex rings. Do face shields provide enough protection to the wearers against COVID-19 if they don't also wear a mask? No. But researchers in Japan are working to create face shields safe enough to be worn alone. In a new article, the researchers describe their work to gain a better understanding of what happens to the airflow around a face shield when someone nearby sneezes. Source 9c.