Abstract The facial fit of respirators is crucial for determining how effectively respirators may protect users from exposure to airborne contaminants, when their use is required in the workplace. In the Chilean market, all the respirators available have been designed and manufactured using foreign regulations. The aim of this research was to determine the facial dimensions in a sample of Chilean workers (users or potential users of respiratory protective equipment) and the possible mismatch between their anthropometric characteristics and the respirator fit test panels proposed by Los Alamos National Laboratory (LANL) and National Institute for Occupational Safety and Health (NIOSH). An anthropometric survey that included 11 measurements was conducted, based on ISO/TS 16976–2 and ISO 15535 to ensure the highest standards possible, and a total of 474 workers (female: 229, male: 245), aged 18–66 years old participated in the survey. The anthropometric measurements were then contrasted with the fit test panels used in LANL (for half and full facepieces) and NIOSH (Bivariate and Principal component analysis (PCA)), to verify the level of mismatch. The results showed that LANL panels presented a level of mismatch of 11.8% and 21% for the half-facepiece and the full-facepiece, respectively. Considering the NIOSH bivariate and PCA panels, 4.6% and 4.4% of the sample remains without an assigned cell, respectively. It can be concluded that the LANL panels for half and full facepieces do not match the facial dimensions of the Chilean working population. The panels developed by NIOSH and considered by the ISO/TS 16976–2 (bivariate and PCA), are applicable to the Chilean working population. Relevance for the Industry This research provides anthropometric measurements of Chilean workers, to determine the dimensions for half- and full-facepiece respirators, which are currently not available. The NIOSH or ISO fit test panels, as opposed to LANL panels, should be used when manufacturing respirators for Chilean workers.

中文翻译：

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LANL 和 NIOSH 提出的智利工人面部尺寸与呼吸器贴合测试面板之间的匹配程度

摘要 呼吸器的面部贴合度对于确定在工作场所需要使用呼吸器时如何有效地保护用户免受空气污染物的影响至关重要。在智利市场，所有可用的呼吸器都是按照外国法规设计和制造的。本研究的目的是确定智利工人（呼吸防护设备的使用者或潜在使用者）样本的面部尺寸，以及他们的人体测量特征与洛斯阿拉莫斯国家实验室 (LANL) 提出的呼吸器适合性测试面板之间可能的不匹配和国家职业安全与健康研究所 (NIOSH)。根据 ISO/TS 16976-2 和 ISO 15535 进行了包括 11 项测量的人体测量调查，以确保尽可能达到最高标准，共有 474 名工人（女：229 人，男：245 人）参加了调查，年龄在 18-66 岁之间。然后将人体测量值与 LANL（用于半面罩和全面罩）和 NIOSH（双变量和主成分分析 (PCA)）中使用的合身测试面板进行对比，以验证不匹配的水平。结果表明，LANL 面板的半面罩和全面罩的失配水平分别为 11.8% 和 21%。考虑到 NIOSH 双变量和 PCA 面板，分别有 4.6% 和 4.4% 的样本没有指定单元格。可以得出结论，半面罩和全面罩的 LANL 面板与智利工作人口的面部尺寸不匹配。由 NIOSH 开发并由 ISO/TS 16976-2（双变量和 PCA）考虑的面板，适用于智利工作人口。行业相关性 本研究提供了智利工人的人体测量数据，以确定目前尚不可用的半面罩和全面罩呼吸器的尺寸。在为智利工人制造呼吸器时，应使用 NIOSH 或 ISO 适合性测试面板，而不是 LANL 面板。