KN95 respirator, filtration efficiency greater than 95% _ Market
Original title: KN95 protective mask, filtering efficiency greater than 95% At present, the epidemic is spreading around the world. Masks, once humble, are now hard currency. Some people even sigh with emotion: It is more difficult to buy a mask than to buy a house! The Minister of Health of Aragon Autonomous Region of Spain could not help choking up when asked about the lack of masks in...
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