Small factory in Zhuhai producing bacteria-killing nano-silver masks

02:51 By now, the hysteria surrounding face masks, their effectiveness and what types of masks actually work, has become a mainstay in the sphere of all things coronavirus. Some see it

By Omar Khan, Chen Yilin & Huang Yi

By Omar Khan, Chen Yilin & Huang Yi

5 Years ago

Science years zhanhong zhuhai woven zhou worn workers work