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16 Mar 2020 . Demand is through the roof for protective face masks in South Korea. as fears . This mask filter, which can be placed inside a cotton mask, …was . Conventional mask filters use an electrostatic method to block particles, .
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14 Feb 2020 . China's Tech Companies Start Production of Face Masks . A bankrupt mask company in Suzhou that had stopped production for 570 days . “Melt-blown cloth” creates a filter layer in the middle of the mask. . Additionally, many other electronic technology companies, traditionally not in the mask business, .
8 Apr 2019 . Conversely, N95 masks like the 3M ones have an electrostatic filter . The Pitta masks claim to be 99% effective at filtering out pollen and dust .
28 Feb 2020 . Yang Bo-sang, a father of two in his 40s, crafted a handmade face mask with an electrostatic filter cotton added inside a cotton mask.