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Phillip Clapp, PhD, member of the Center for Environmental Medicine, Asthma, and Lung Biology, explains the research behind double-masking and how to make sure your mask fits properly.


Dr. Phillip Clapp, UNC Pediatrics assistant professor in the Center for Environmental Medicine, Asthma, and Lung Biology, explains the research behind double-masking and how to make sure your mask fits properly. For the latest information on COVID-19, visit https://vaccine.unchealthcare.org/