How Do Face Masks Control the Spread of Disease?
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Effect of Wearing Face Masks on the Carbon Dioxide Concentration in the Breathing Zone - Aerosol and Air Quality Research
Valve face masks provide less COVID-19 protection > Air Force Materiel Command > Article Display
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When and how to use masks
![](https://www.ucsf.edu/sites/default/files/2020-07/Masks-father-son.jpg)
One More Reason to Wear a Mask: You'll Get Less Sick From COVID-19
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How Face Masks Can Help Prevent the Spread of COVID-19
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Will one-way masking protect you from COVID in public spaces? : Goats and Soda : NPR
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Face masks during the COVID-19 pandemic - Wikipedia
Can 'Strategic Masking' Protect Against COVID-19, Flu, and RSV? > News > Yale Medicine
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How Do Face Masks Control the Spread of Disease?
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Reducing transmission of SARS-CoV-2