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1 - 3 of 3 search results for `KN95 masks` |d=0

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  2. Proper fit of face masks is more important than material, study…

    https://www.eng.cam.ac.uk/news/proper-fit-face-masks-more-important-material-study-suggests
    For the study, seven participants first evaluated N95 and KN95 masks by performing a fit check, according to NHS guidelines. ... Participants then underwent quantitative fit testing – which uses a particle counter to measure the concentration of

  3. Aroma diffuser and plastic bag offer inexpensive method to test fit…

    https://www.eng.cam.ac.uk/news/aroma-diffuser-and-plastic-bag-offer-inexpensive-method-test-fit-face-masks-home
    The researchers caution, however, that their setup will only test the fit of sealing masks with high filtration ability, such as N95, FFP3, KN95 or FFP2 masks. ... Many people are using KN95 or FFP2 masks,” said O’Kelly. “While these masks can

  4. High-filtration masks only work when they fit – so we created a new…

    https://www.eng.cam.ac.uk/news/high-filtration-masks-only-work-when-they-fit-so-we-created-new-way-test-if-they-do
    The KN95 masks also performed very poorly when they didn’t fit, offering no more protection than a cloth or surgical mask. ... In healthcare settings, a different method is used to test high-filtration masks.

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