@Backtotravel22 @MichaelSFuhrer That's about what masks do if you can get everyone to use them. Maybe a bit more with higher quality masks. If you add air quality, can probably do better, or do with less mask wearing.
@Backtotravel22@MichaelSFuhrer这是关于面具的作用，如果你能让每个人都使用它们。也许有更高质量的面具。如果你增加空气质量，可能会做得更好，或者少戴口罩。