大众用于源控制的面戴产品的外泄总量
Weihua Yang1, Warren Myers2, Mike Bergman3
1Department of Industrial and Management Systems Engineering, Statler College of Engineering and Mineral Resources, West Virginia University, Morgantown, WV; National Institute for Occupational Safety and Health, National Personal Protective Technology Laboratory, Pittsburgh, PA.
American journal of infection control
|September 30, 2024
概括
单层布面膜的泄漏率最高,使得它们对源控制效率最低. 三层一次性口罩可以提供更好的保护,防止呼吸道病毒传播.
科学领域:
- 公共卫生 公共卫生
- 呼吸系统保护 呼吸系统保护
- 材料科学 是一种材料科学.
背景情况:
- 在COVID-19大流行期间,由于N95呼吸器和手术口罩的短缺,非标准的面部佩戴产品的广泛使用发生了.
- 人们对这些随时可用的产品在缓解呼吸道病毒传播方面的有效性表示担忧.
研究的目的:
- 量化公众使用的各种面戴产品的总外泄率 (TOL).
- 评估产品类型和头型尺寸对泄漏率的影响.
主要方法:
- 测试了9个类别的面部佩戴产品,每类别2个单位.
- 使用了两种不同尺寸的头形和弹性体皮肤的长板系统.
- 每个产品单位在每个头形上被戴了五次,以测量总向外泄漏.
主要成果:
- 面部佩戴产品类别和头形尺寸都对TOL产生了重大影响 (P < .05).
- 泄漏率差异很大,根据产品和头形尺寸,从10%到58%不等.
- 在中型头形上测试的产品与较大的头形产品相比,平均TOL较高.
结论:
- 单层面料面膜显示了最高的TOL,这表明它们在源控制方面最不有效.
- 三层一次性面罩作为公共来源控制的潜在有利选择出现.
- 建议制定面戴产品设计和制造的标准,以适应各种面部尺寸.
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