Some friends will think [there is nothing worth saying about wearing a broken mask], but don’t think so. This inconspicuous little thing has made great contributions to human health. Doctors often wear masks. They need to wear masks when visiting tuberculosis patients. Friends in areas with poor air quality often wear masks. Everyone wears masks during SARS. Although masks are a common thing that everyone can afford to wear, not everyone can wear them. The following doctor clove will tell you about the health knowledge of wearing masks to help you prevent various diseases. Mask has a long history and is a great invention. The history of masks can be traced back to BC, when [masks] were only decorations that Read More …