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  1. Jan 14, 2022 · Learn how to choose and wear the most protective mask or respirator for COVID-19 prevention, based on the latest science and recommendations from CDC. The updated webpage also explains the types of masks and respirators and their benefits and limitations.

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  3. Jan 15, 2022 · The CDC updated its mask guidelines. What to know about ‘the highest level of protection’. By Kristen Rogers, Parija Kavilanz and Amanda Sealy, CNN. 8 minute read. Updated 7:27 PM EST, Thu...

    • 5 min
  4. Dec 18, 2021 · Find out how to choose and use the most effective masks against the coronavirus, based on CDC and WHO guidelines. Compare different types of masks, such as N95, KN95, surgical, and cloth, and learn how to double-mask, reuse, and clean them.

    • Corey Gaskin
  5. Learn about different types of masks, how to wear and wash them, and when to use them to prevent COVID-19 transmission. Find answers to common questions from an expert in infection prevention.

  6. Nov 4, 2023 · Learn how face masks can slow the spread of the virus that causes COVID-19, and how to choose and use them properly. Find out the differences between medical, KN95, N95 and cloth masks, and when to wear them.

  7. Mar 1, 2024 · How it works. Generally, masks can help act as a filter to reduce the number of germs you breathe in or out. Their effectiveness can vary against different viruses, for example, based on the size of the virus. When worn by a person who has a virus, masks can reduce the chances they spread it to others.

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