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Unmask the Data
Nelson Shwe, Staff Graphic Artist
Image courtesy of JAMA Network.
The graphic above provides the fitted filtration efficiency (FFE) for different types of face masks. FFE is how well materials filter out particles.
Sources:
https://www.epa.gov/sciencematters/epa-researchers-test-effectiveness-face-masks-disinfection-methods-against-covid-19
https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2774266
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