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CDC: Avoid masks with valves to stop the spread of the coronavirus

from NBC News

CDC: Avoid masks with valves to stop the spread of the coronavirus NBC News Masks with valves do not stop the spread of the coronavirus and should not be used, according to the Centers for Disease Control and Prevention. "Masks with exhalation valves or vents should NOT be worn to help prevent the person wearing the mask from spreading COVID-19 to others," the CDC's website reads after it added a section on mask guidance on Aug. 7. READ MORE

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