Is it safer for students to wear N95 masks in physical education?
2020-05-29
It is not advisable to wear a mask in physical education class. With the continuous improvement of the epidemic prevention and control situation, various regions have started to resume classes. In order to better protect their children, some parents wear KN95 masks to school, and some children even wear N95 masks for physical exercise. Experts remind that children's cardiopulmonary function is not yet fully developed. Long-term wearing of KN95 masks will damage the children's cardiopulmonary functions. Do not wear KN95 masks during sports to avoid the risk of suffocation. 
Tang Yongjun, a professor of respiratory medicine at Xiangya Hospital of Central South University in China, told reporters that the first principle for children to choose masks is comfortable ventilation. Although KN95 masks are highly protective, they are not conducive to ventilation, so they cannot wear KN95 masks for running, playing sports, and Other sports. Some children also wear masks during physical education classes, which is actually not desirable. It is not recommended that children wear masks for intense exercise training to avoid symptoms such as dizziness and chest tightness. 
Doctor reminds Wang Yuedan, Professor of Immunology, Peking University School of Basic Medicine, reminded that even when an adult wears a KN95 Mask, the time should not exceed 4 hours at a time. If the Kn95 Mask is used for a long time, it will cause lung damage and may cause emphysema. Kind of problem. At the same time, each person's breathing volume, speech frequency and exercise volume are different. Under normal circumstances, it is enough to use a Disposable Mask to change every day. Zong Zhiyong and Wang Yantong, experts in the Department of Infection Management of West China Hospital of Sichuan University, suggest that children under 7 years old should not wear KN95 masks, even if they are made with special air valve N95 masks, because the respiratory resistance will be too large There is a risk of suffocation. Anyo Hao, head of the infection management department at the First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, said: KN95 masks can filter out 95% of tiny particles, which will inevitably affect its breathability. If you wear it for a long time, you will feel sleepy, dizzy and chest tight due to hypoxia and carbon dioxide retention acidosis. It is not recommended that children wear masks for strenuous exercise, which may cause hypoxia. If your child needs to take physical education classes, it is recommended to take it out in a ventilated outdoor area. You don`t need to wear a mask when doing physical activities. Try to choose sports that can maintain a certain distance, such as doing exercises and avoid close contact.
