News Release 

Fitted filtration efficiency of double masking during COVID-19 pandemic

JAMA Internal Medicine

Research News

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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Media advisory: The full study is linked to this news release.

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