@EIFY @KashPrime @EricTopol @drdagly Some do but there is also a member of the public with surgical mask visible in that picture.
The people in the hazmat suits all wear high filtration masks I think.
@EIFY@KashPrime@EricTopol@drdagly有些人这样做，但照片中还有一名公众戴着口罩。
我想穿防毒服的人都戴着高过滤口罩。