A new type of face mask has been developed in Shanghai using nano technology, which is highly permeable to air but resistant to water.The new product can endure repeated sterilization through boiling water, alcohol or disinfectant, and has 20 times the service life of a regular surgical mask.According to Shanghai-based Wen Hui Bao, the new mask is expected to come into the market within the coming weeks.Based on an inspection report from the Liaoning Inspection and Test Institute for Medical Equipment, the mask has reached the national criteria for medical protective masks GB19083-2010 in key indicators such as permeability and blood-resisting abilities.Produced by Juchen Infant and Children's Clothing Co Ltd, the new mask used a high polymer material from Hanpu New Material Science and Technology Co Ltd, both based in Fengxian district, Shanghai.Juchen was founded in 1994, with a
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