Comparing the fit of N95, KN95, surgical, and cloth face masks and assessing the accuracy of fit checking.
Comparing the fit of N95, KN95, surgical, and cloth face masks and assessing the accuracy of fit checking.
复制标题
DOI：
10.1371/journal.pone.0245688
复制
发表时间：
2021
期刊：
影响因子：
3.7
通讯作者：
Clarkson PJ
中科院分区：
文献类型：
--
作者：
O'Kelly E;Arora A;Pirog S;Ward J;Clarkson PJ
COVID-19大流行使合身的口罩成为医护人员和平民的关键防护装备。虽然戴口罩的重要性已得到承认，但人们仍然缺乏对良好契合在使防护设备发挥作用方面的作用的理解。此外，供应链约束已经导致一些组织放弃了传统的定量或/和定性的契合度测试，取而代之的是实施了主观的契合度检查。我们的研究旨在定量评估各种类型口罩提供的适配水平，最重要的是，通过比较适配检查结果和定量适配测试结果来评估实施适配检查的准确性。七名参与者首先通过健康检查来评估N95和KN95呼吸器。然后，参与者戴着五个N95口罩、一个KN95口罩、一个外科口罩和一个织物口罩进行了定量适配测试。N95口罩的防护程度高于其他类型的口罩；然而，应该注意的是，大多数N95口罩不能充分适合参与者。契合度检查反应与定量契合度因子得分相关性较差。KN95、外科口罩和织物口罩的贴合系数得分较低，呼吸保护选项之间的保护差异很小。此外，小的面部差异被观察到有显著的影响定量拟合。适合度对呼吸器提供的保护水平至关重要。要让N95口罩提供承诺的保护，它必须适合参与者。通过NHS自我评估指南进行健康检查是一种不可靠的确定健康的方式。
The COVID-19 pandemic has made well-fitting face masks a critical piece of protective equipment for healthcare workers and civilians. While the importance of wearing face masks has been acknowledged, there remains a lack of understanding about the role of good fit in rendering protective equipment useful. In addition, supply chain constraints have caused some organizations to abandon traditional quantitative or/and qualitative fit testing, and instead, have implemented subjective fit checking. Our study seeks to quantitatively evaluate the level of fit offered by various types of masks, and most importantly, assess the accuracy of implementing fit checks by comparing fit check results to quantitative fit testing results. Seven participants first evaluated N95 and KN95 respirators by performing a fit check. Participants then underwent quantitative fit testing wearing five N95 respirators, a KN95 respirator, a surgical mask, and fabric masks. N95 respirators offered higher degrees of protection than the other categories of masks tested; however, it should be noted that most N95 respirators failed to fit the participants adequately. Fit check responses had poor correlation with quantitative fit factor scores. KN95, surgical, and fabric masks achieved low fit factor scores, with little protective difference recorded between respiratory protection options. In addition, small facial differences were observed to have a significant impact on quantitative fit. Fit is critical to the level of protection offered by respirators. For an N95 respirator to provide the promised protection, it must fit the participant. Performing a fit check via NHS self-assessment guidelines was an unreliable way of determining fit.
登录
查看更多内容
影响因子：
4.4
作者：
MacIntyre CR;Wang Q;Cauchemez S;Seale H;Dwyer DE;Yang P;Shi W;Gao Z;Pang X;Zhang Y;Wang X;Duan W;Rahman B;Ferguson N
通讯作者：
Ferguson N
影响因子：
--
作者：
Reponen, Tiina;Lee, Shu-An;Mckay, Roy
通讯作者：
Mckay, Roy
影响因子：
6.9
作者：
Lam, S. C.;Lee, J. K. L.;Charm, C. Y. C.
通讯作者：
Charm, C. Y. C.
影响因子：
4.9
作者：
Oberg T;Brosseau LM
通讯作者：
Brosseau LM
DOI：
10.1202/0002-8894(1983)044
发表时间：
1983-01-01
期刊：
AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL
影响因子：
--
作者：
COOPER, DW;HINDS, WC;YEE, HS
通讯作者：
YEE, HS