@ramzmom0996 @kprather88 @CDCDirector @CDCgov @AbraarKaran The recommendation if you are going to do that is a tight cloth mask over a surgical mask. But there are many good respirators widely available now, so less needed.
@ramzmom0996@kprather88@cdcdcedirector@CDCgov@AbraarKaran如果你要这样做的话，建议你在手术口罩上盖上一个紧布口罩。但是现在有很多好的呼吸器可以广泛使用，所以需要的更少。