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What Mask Types You Can Choose During COVID-19?

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1 Introduction During COVID-19, the masks we can generally be divided into medical protective masks, medical surgical masks, ordinary medical masks, and ordinary non-fat gauze...

Report Finds KN95 Masks Not as Effective as N95 Masks

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At the Initiation of this pandemic, we are not sure about the worse condition which is going to come. Social distancing and living in...

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