Face masks made with cashew nut shells developed in Singapore offer antimicrobial protection | South China Morning Post

A Singapore company says it has developed a sustainable, medical-grade face mask using natural products. The N95, CE, and Oeko-Tex certified reusable Vi-Mask is made from biodegradable ingredients derived from cashew nuts, soybeans, and chitosan from crab shells, and is said to offer antimicrobial protection. The co…

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