Do I have to wear a KN95 mask?
Academician Zhong Nanshan, head of the high-level expert group of the National Health Commission, said in an interview with Bai Yansong that if you are uncomfortable, you should wear a mask. Wearing a mask is still useful. In fact, you don't have to wear KN95 mask. Because these viruses do not exist alone, they often exist in droplets. General surgical masks can still block most of them, and wearing masks is still useful.
In other words, for the purpose of self-protection and reducing the...