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Updated: 16 Dec 2020, 20:20 WEARING a used face mask can be worse than not wearing one at all, a new study has claimed. Researchers specifically looked at the three-layer surgical masks, which are commonly worn among healthcare professionals. 2 The three-layer masks are among the most recommended to protect yourself and others from contracting Covid-19Credit: Alamy 2 The researcher s model showed that when people wear face masks, it changes the way the air flows around the faceCredit: Getty Images - Getty They found that when the masks are worn for the first time the can filter out nearly three-quarters of tiny particles that stay in the air and are most responsible for infection.

Umass lowellHealth newsIt outnew british armyCalifornia baptist universityUniversity of massachusetts lowellGetty imagesMassachusetts lowellBritish armyஉமஸ்ஸ் லோவெல்ஆரோக்கியம் செய்திகலிஃபோர்னியா ஞானஸ்நானம் பல்கலைக்கழகம்பல்கலைக்கழகம் ஆஃப் மாசசூசெட்ஸ் லோவெல்கெட்டி படங்கள்மாசசூசெட்ஸ் லோவெல்பிரிட்டிஷ் இராணுவம்