@AbraarKaran It's bullshit anyway. People CAN wear N95s all day long. Many do already in jobs that require it, but ivory tower people have little contact with folks doing "dirty work" so it doesn't exist.. Many N95s are also very comfortable.
@AbraarKaran反正都是胡说八道。人们可以全天佩戴N95。许多人已经从事了需要这种技能的工作，但象牙塔人与从事“肮脏工作”的人几乎没有联系，所以这种技能根本不存在。。许多N95也非常舒适。