What The Study Did: The fitted filtration efficiency of commonly available masks worn singly, doubled or in combinations was evaluated in this study.
Authors: Emily E. Sickbert-Bennett, Ph.D., M.S., of the UNC Medical Center in Chapel Hill, North Carolina, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamainternmed.2021.2033)
Editor's Note: The article includes conflict of interest and funding/support disclosures. Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
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