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CDC confirms that double-masking significantly helps prevent the spread of COVID-19

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The Centers for Disease Control and Prevention released a new report on Wednesday confirming what many experts had already suggested: wearing two masks prevents the spread of COVID-19 more than wearing just one mask. The CDC also reports that a tight mask fit is important and significantly protects the wearer from contracting COVID-19.

The Centers for Disease Control and Prevention released a new report on Wednesday confirming what many experts had already suggested: wearing two masks prevents the spread of COVID-19 more than wearing just one mask. The CDC also reports that a tight mask fit is important and significantly protects the wearer from contracting COVID-19.

  1. Feb 10

    Wearing a double mask or fitting a single mask more closely on the face substantially reduces the risk of infection with the virus that causes Covid-19, according to a new study published by the CDC

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  2. Feb 10

    In lab tests with dummies, exposure to potentially infectious aerosols decreased by about 95% when they both wore tightly fitted masks, a new finds. that fits tightly to your face to stop the spread of . More: .

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  3. Feb 10

    CDC updates coronavirus face mask guidance, endorses 'double masking'

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  4. Feb 10

    The CDC has released new research that found double-masking offers more protection against the coronavirus. Tying knots on the ear loops of medical masks can also help.

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  5. Feb 10

    DOUBLE MASKING: The CDC is suggesting people begin wearing a cloth mask on top of a medical procedure mask to improve fit and better protect against COVID-19 variants that are on the rise.

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  6. Feb 10

    "It works": CDC offers new findings on double mask use for stopping COVID transmission

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  7. Feb 10

    A few takeaways from this CDC report: - Double masks decreased exposure by 92.5%, more than 2X what a single mask did. - Wearing a tightly-fitted mask reduced exposure by 60%, even when just one subject wore it. - That number was 96% when both did

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  8. Feb 10

    3) “One is wearing a cloth mask over a surgical mask. The second is improving the fit of a single surgical mask by knotting the ear loops and tucking in the sides close to the face to prevent air from leaking out around the edges and to form a closer fit.”

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  9. Feb 10

    The benefits are clear: In the CDC study, a medical procedure mask alone blocked 42% of particles from a simulated cough, while a cloth mask alone blocked 44%. A cloth mask covering a medical procedure mask blocked 92.5% of the cough particles.

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  10. Feb 10

    And when both people were wearing fitted double masks, the receiver's exposure was reduced by 96%. When they were both wearing knotted and tucked masks, same thing -- 96% reduction.

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  11. Feb 10

    CDC says that double-masking or other strategies to make masks fit tightly make them much more effective -- up to 95% in tests using mask-wearing dummies.

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  12. Feb 10

    CDC emphasizes proper mask fit to protect against coronavirus variants, urging double masks in some cases

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  13. Jan 27

    “If you combine multiple layers, you start achieving pretty high efficiencies” of blocking viruses from exiting and entering the airway, says , expert in virus transmission.

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  14. Feb 1

    Yes, double-masking can provide an additional layer of coronavirus protection. However, you don't automatically become twice as safe. "This is not how depth filtration works," explains one researcher. The best ways to maximize your mask's effectiveness:

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  15. Jan 28

    The CDC has not issued official guidance on double-masking, however, the evidence suggests two masks are likely more effective than a single mask. 

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  16. Feb 1

    Recent guidance from experts suggests that double masking (or upgrading masks to 2+ layers) not only adds extra filtration but also covers gaps. Whenever you are on campus or in public, wear at least a two-layer mask that fully covers your nose & mouth & fits snugly on your face.

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  17. Jan 31

    What is double-masking? How should you double-mask? When? Is a cloth mask still effective? Experts told us the best ways to cover up as coronavirus variants spread 😷

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  18. Feb 2

    An achievable way to maximize protection for both yourself and others is to wear a double mask

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  19. Feb 2

    As new variants of COVID-19 spread, experts recommend wearing a double mask to protect yourself and others. Read our article to learn more about the new variants and evolving public health recommendations.

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  20. Jan 31

    University of Washington study this week concluded that we would save more than 30,000 lives in next 3 months if 95% of us wore masks consistently. (That would mean hundreds of thousands of hospitalizations and millions of infections avoided too) 9/x

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  21. Jan 31

    Masks should be 2 or 3 ply woven fabric, as per CDC, & should fit snugly over nose/on cheeks and under chin so that air goes through the mask, not around the edges. Hold your mask up to the light and it should block the light out (or its too thin). 10/x

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  22. 2 Dec 2020

    How to protect yourself and others from COVID-19.

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