Embedded between the fabric layers of this FFP2-style face mask is a specialized gas sensor that could help diagnose chronic ...

More than 40 million gas masks were issued. In America there was a gas mask for children that looked like Mickey Mouse, with the character's nose and ears and even a picture of him on the gas filter.

Surgical face masks help prevent the spread of airborne pathogens and therefore were ubiquitous during the COVID-19 pandemic.