The need to wear masks

The main route of transmission of COVID-19 is droplet transmission, which can be transmitted through the respiratory tract. The safety of the respiratory tract should be ensured. Face masks can act as a barrier to viral contamination. For patients who are already infected, face masks can prevent the spread of the virus, reducing contamination of the environment and the chance of transmission to others. So choosing a face mask of good quality is very important.
For healthy people, if possible, they should choose face masks of good quality. It is very good to prevent contamination or to prevent contamination of others. If conditions are limited, healthy people can wear low-grade masks, but they should keep a distance from the outside world and people around them, especially avoid contact with suspicious patients. Can also play a protective role to some extent.