In China, during the flu epidemic in 1910, people began to mass-produce masks - they folded a piece of gauze in several layers and tied it on the back of the sit. Only in the 1920s, after the Spanish pandemic, the largest in the history of mankind, the wearing of masks became mandatory for doctors in European hospitals. And already in the second half of the twentieth century, masks began to be produced on an industrial scale and for ordinary people.🎭🎭🎭

Very interesting fact, thank you for the information🎭