Masks

COVID-19 is a contagious disease that can be spread through the air. Wearing a mask, washing hands frequently or maintaining social distance can all help slow the spread of the virus. Wearing a mask can reduce the risk of contracting airborne infectious diseases. Moreover, masks are relatively low in cost, so this method can be popularized to more people. Although the mask is a very simple tool, we must also learn to distinguish the types and functions of masks and the precautions when using masks to avoid stepping on minefields.