The masks on the market are basically divided into three categories: civilian masks, medical masks and professional respiratory protective masks. Civilian masks, such as disposable nursing masks. It mainly refers to the daily protective masks that meet the needs of most people’s daily life and work. Medical masks are divided into medical protective masks (N95口罩), medical surgical masks and …

南昌一家工廠的工人們正在生產醫用防護口罩, Jiangxi province. [胡國林 攝/中國日報] 一個視頻, 聲稱口罩的滅菌過程會在產品上留下致癌物質, 上週引起了公眾的擔憂. 所以, 口罩生產過程中到底發生了什麼? 這真的值得擔心嗎? 1. What is used to …