If One Mask Is Good for COVID Protection, Are Two Better?
Based on recent test results, the Centers for Disease Control and Prevention (CDC) in February recommended double-masking to reduce the risk of COVID-19 viral transmissions. For the record, “double-masking refers to wearing both a surgical mask and a cloth mask over the surgical mask,” says Paul Drain, MD, MPH, associate professor of global health, medicine (infectious diseases), and epidemiology at the University of Washington. He is the principal investigator of several studies into COVID-19 diagnoses. “The use of a disposable mask under a cloth mask has been shown to improve protecti...