Pantyhose Over A Facemask

我曾經介紹過口罩防病的事--其實不是保護自己不受感染，而是萬一自己感染無症狀而不知，不成為飛沫傳染他人的人。本文取自Upworthy網站的介紹：Putting pantyhose over of a homemade mask boosts effectiveness up to 50 percent，小妙招提高口罩的效率。

Research out of Northeastern University indicates that adding a nylon layer outside of a homemade mask can boost its effectiveness. According to NPR, the nylon addition increases the masks ability to filter out small particles by creating a tighter seal around the mask. In fact, in some cases, adding the nylon layer made homemade face coverings more effective than medical-grade surgery masks.

The nylon even made surgical medical-grade surgical masks more effective, pushing a standard surgical mask from blocking 75% of small particles to 90%, rendering it nearly as effective as the N95 mask, which blocks 95%.

The effectiveness of cloth masks vary widely, with some masks in the study only blocking 30% of small particles. Using a thicker weave cloth and adding more layers to a mask helps boost its ability to filter, though any face covering is better than nothing.

With improvements of 15% to 50%, however, the nylon trick is worth trying. Fernandez suggests using queen-sized pantyhose to keep the nylon from being uncomfortably tight. Simply cut 8-inch to 10-inch strip of pantyhose leg and place it over your mask so that it overlaps around all the edges.

Though the research has not yet been peer-reviewed, Ben Cowling, an epidemiology professor at the University of Hong Kong who has studied the efficacy of face masks, says that the study and its findings are "important" and "promising."

我覺得戴口罩很悶，所以不喜歡戴。但要再強調一次，咱們戴上口罩是為了別人。