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A UD research group led by Engineering Prof. Cathy Fromen (above) and graduate students Emily Kolewe, Zach Stillman and Ian Woodward examined how much of a person’s breath gets past different kinds of masks being worn to mitigate the coronavirus. Face mask fit matters Fit is important, but an imperfect mask is still better than none, UD researchers find When you wear a mask in the fight against the coronavirus (COVID-19), you protect others around you by keeping your exhalations, known as aerosols, and many of the potentially infectious particles within them, to yourself. A University of Delaware research team developed a novel method for evaluating how well face masks keep aerosols in, finding that tightly fitting N95 respirator masks are more protective than loose-fitting N95 masks, surgical masks and sewn masks. However, even an imperfectly fitting mask is better than none at all. What’s more, for homemade masks, a few simple tweaks — layering in a coffee fil

Zach stillmanCathy fromenEmily koleweBrian woodwardPa university of delawareஸ்யாக் ஸ்டில்மந்ஈயந் வூட்வார்ட்