The fibrous structure on the mask completely kills bacteria and viruses.The zinc and copper inside can break down the walls of the bacteria, preventing them from being inhaled and spreading throughout the body.The masks are already used in Hong Kong, China and Europe, and are expected to be sold in the United States.

The principle:

Laboratory tests have shown that people release 50 times more bacteria when they sneeze, and the newly developed bio-mask kills 99.9 per cent of sneezing flu bacteria in less than a minute.In an ordinary mask, more than 50,000 strains of flu bacteria can survive.