Wearing a mask can resist germs. Wearing a mask has many advantages. First of all, it can help us resist most bacteria and viruses, especially medical masks. Ordinary dust masks may not be effective, but the protection rate of medical masks against bacteria and viruses is as high as 90%.
The examination room is crowded. Everyone stays in one place for a long time, and the windows will be closed all the time. Because it is cold in winter, the convection of air when opening the windows will seriously reduce the internal temperature of the examination room, which will have a bad influence on the candidates, leading to shaking hands and feet during the examination and inconvenient writing.
Therefore, the examination room usually chooses to close the doors and windows during the examination, which will cause poor air circulation. Everyone's coughing and sneezing will circulate in a secret space, which is easy to cause cross-infection, so wearing a mask can effectively prevent the spread of such germs.
Wear a mask to avoid affecting others' exams. Secondly, if we have symptoms such as cough, wearing a mask is a kind of respect for others. If the people around you are sensitive, you may be fully alert to other people's coughs. So if we take off the mask, it is easy to affect other people's exam results when coughing.
He may have been very concerned about your cough rhythm. If you cough, he will hold his breath, distract his attention, and affect the efficiency of the exam and his grades.
Wearing a mask can keep our faces warm and reduce the chance of catching a cold. In addition, wearing a mask can effectively keep our face warm, increase facial blood circulation and keep our brain in a highly concentrated state. Besides, a cold attacking our face can easily lead to sneezing and catching a cold. What affects our exam status will also cause panic to others.