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マスク), medical surgical masks and …

南昌の工場で医療用防護マスクを製造する労働者, 江西省. [写真提供：Hu Guolin/For China Daily] ビデオ, マスクの滅菌プロセスにより製品に発がん性物質が残ると主張, 先週一般大衆の間で懸念を引き起こした. そう, マスク製造中に何が起こっているのか? それは本当に懸念材料ですか? 1. What is used to …