How to use a mask properly avoiding Covid-19

The situation of disease outbreak due to new strain of Corona family (nCoV) is increasingly complicated. Preventive measures are very important in that the proper use of masks is an important measure for each person to protect themselves and contribute to fighting the disease.
Facing the community rushing to buy masks, the Health Ministry of several countries has made the following recommendations:

People who have a fever, cough or runny nose or who are recovering should wear a mask as this is a good way to prevent spreading germs to others.
– Healthy people do not need to wear masks, unless they are in direct contact with the sick person, especially those who are coughing / sneezing without wearing a mask.
– Also, consider wearing a mask when going into a crowded place, in a closed room because you do not anticipate the risk of infection in that environment.
The Vietnamese market currently has a variety of masks with different designs, but in the prevention of respiratory infections, there are two types of official masks.