What is ‘one-way masking’—and how can it protect you from COVID?

Although the most benefit for avoiding COVID-19 and other respiratory illnesses comes from all people wearing masks correctly, there is ample data that shows mask-wearing can protect the wearer, even in settings where others aren’t masked up, according to David Souleles, MPH, director of the COVID-19 Response Team Program in Public Health at the University of California, Irvine.