‘Anti-virus’ face mask effective even after being washed 100 times
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NIIGATA–Researchers here developed a face mask that can be washed repeatedly and is touted as being able to render viruses inactive.
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Kazuhiko Hanzawa, a specially appointed professor of vascular surgery at Niigata University, said the surgical mask can inhibit virus activity even after being washed 100 times.
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Few reusable, high-performance masks are currently commercially available.
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“The new mask can help prevent infection with the new coronavirus, particularly among the elderly and others who have a higher risk of suffering from serious conditions,” Hanzawa said.
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The product, developed with sportswear maker Onyone in Nagaoka, Niigata Prefecture, uses photocatalysis technology to produce active oxygen that can lower the infectious ability of a virus.
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Minuscule particles of titanium oxide, which serve as a photocatalyst, are woven into the fabric.
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According to Hanzawa, the fabric generates ions if exposed to infrared rays, allowing them to react with oxygen to produce hydroxyl radical, a type of active oxygen.
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The double-structure mask is comprised of the photocatalyst fabric and another layer of cloth that blocks particles such as dust.
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An “inner mask” to be worn below disposable or cloth masks was also developed, using the photocatalyst fabric.
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The double-structure mask will be offered for sale at 2,200 yen ($20.49), excluding tax, and the inner mask for 1,200 yen.
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Five sports goods and other stores in Niigata Prefecture are expected to have stocks from May 16. Sales will start outside the prefecture on May 23.
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