Cold currents, flu, pollen, air pollution ... have made people put on protective masks. However, many people wear the same protective mask for three or four days and do not change their clothes even when it becomes dark. Han Shuhua, deputy chief physician of the Department of Respiratory Medicine of Zhongda Hospital of Southeast University, told the Life Times reporter that when wearing a protective mask for a long time, the breath exhaled on the inside of the protective mask.If it is not cleaned or replaced in time, it is easy to breed bacteria and harm health; Contaminants build up on the mask and can also affect the respiratory system.How long have you changed your protective mask?
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