Jespersen Søren
Ugeskr Laeger. 2020 Dec 7;182(50).
The author of this original article has noted, that some face masks are only covering the chin, and these masks are touched infrequently. In the study, it has been investigated, if users of chin masks touch their face less than users of mouth or mouth-and-nose masks.
Ten waiters in cafés have been observed for half an hour each, and the numbers of face or mask touching have been registered.
The study found three persons, who mainly used chin masks and touched the face rarely.
Due to a limited number of observations, the result was not significant.
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这篇原创文章的作者指出,一些口罩仅覆盖下巴,且这些口罩很少被触碰。在该研究中,已对仅使用覆盖下巴口罩的使用者是否比使用覆盖嘴巴或嘴巴和鼻子口罩的使用者更少触摸脸部进行了调查。
对咖啡馆的十名服务员每人观察半小时,并记录触摸脸部或口罩的次数。
该研究发现有三人主要使用覆盖下巴的口罩且很少触摸脸部。
由于观察数量有限,结果不显著。
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