@SusanELankford @MeetJess @LaSeletzky Lower bound is only 5% but still significant. Interesting point made elsewhere in thread maybe masks worn better by those w/glasses because of fogging.
@SusanELankford@MeetJess@LaSeletzky下限仅为5%，但仍然很重要。在《线程》的其他地方提出了一个有趣的观点，可能是那些戴眼镜的人戴上口罩会因为起雾而更好。