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As new COVID-19 strains continue tospread, wearing a mask with a filtercan provide you with extra security.A face mask filter's purpose is totrap microscopic particles that mayordinarily pass through ...

Airplane filters remove 99% of particles, experts say, which can help keep transmission of COVID-19 low on flights. But face masks provide an additional layer of protection -- especially if you're ...

ST. PAUL -- Global concerns over avian influenza mean busy times for 3M Co. and other businesses that make air-filtering masks. Plants that make 3M's face masks have been running nonstop in recent ...

Four years ago, long before the pandemic made masks ubiquitous, a U.K.-based startup called Masuku began developing a better face mask to help filter out pollution in smoggy cities. Masks on the ...