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    CDC Updates Mask Guidance

    • Published
    • 17 January 2022
    • Category
    • News

    The Centers for Disease Control and Prevention (CDC) has updated it guidance on the use of masks to reduce COVID-19 exposure risk. In its Jan. 14, 2022, update, the CDC clarified that:

    • People can choose to use N95 or KN95 respirators (filtering masks).
    • Surgical N95 masks are a specific type of respirator that should be reserved for use in health care settings.
    • Some types of masks and respirators are more effective than others at preventing transmission of SARS-CoV-2, the virus that causes COVID-19.

    In all cases, a mask should be a snug fit without gaps, comfortable and worn consistently when there is exposure risk. According to the CDC, loosely woven cloth masks provide the least protection, layered finely woven products offer more protection, well-fitting disposable surgical masks and KN95s offer even more protection, and well-fitting NIOSH-approved respirators (including N95s) offer the highest level of protection. Masks that have valves or vents, or are wet, dirty or made of thin fabric are not effective.

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