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Evaluation of the performance of replaceable particulate and powered air-purifying respirators considering non-recommended wearing methods.
Industrial Health ( IF 2 ) Pub Date : 2020-12-04 , DOI: 10.2486/indhealth.2020-0056
Shingo Sekoguchi 1 , Taiki Shirasaka 1 , Hajime Ando 1 , Kazunori Ikegami 1 , Akira Ogami 1
Affiliation  

This study evaluated the performance of two respirators, a replaceable particulate respirator (RPR) and a powered air-purifying respirator (PAPR), worn according to non-recommended methods. Ten subjects wore either an RPR or PAPR according to the recommended method, or according to a non-recommended method, with a knit cover placed between the facepiece cushion and face, with a towel placed between the facepiece cushion and face, or with the headband on a helmet. The leakage rate of each wearing variation was then measured, according to the procedure for determining the protection factor of respiratory protective equipment, using atmospheric dust as required by JIS T8150. The average leakage rate for the RPR was 1.82–10.92%, whereas that of the PAPR was 0.18–0.42%. The performance of the RPR decreased when worn in methods outside of recommendations; however, there was no significant decrease in the performance of PAPR under any method of wear. Therefore, a PAPR is recommended for work in which a replaceable or disposable particulate respirator fails to provide sufficient protection against hazardous dust substances, or for workers who are unable to use a particulate respirator according to the recommended method owing to the work environment or health conditions.



中文翻译:

考虑非推荐佩戴方法的可更换颗粒物和动力空气净化呼吸器的性能评估。

这项研究评估了根据非推荐方法佩戴的两个呼吸器,可更换的颗粒呼吸器(RPR)和电动空气净化呼吸器(PAPR)的性能。十名受试者按照推荐的方法或根据非推荐的方法佩戴了RPR或PAPR,在面罩垫和脸之间放置了针织套,在面罩垫和脸之间放置了毛巾,或者使用了头带在头盔上。然后根据确定呼吸防护设备的保护系数的程序,使用JIS T8150要求的大气尘埃,测量每种磨损变化的泄漏率。RPR的平均泄漏率为1.82–10.92%,而PAPR的平均泄漏率为0.18–0.42%。如果使用建议以外的方法,则RPR的性能会下降;但是,在任何磨损方式下,PAPR的性能均没有显着下降。因此,PAPR建议用于可更换或一次性颗粒物呼吸器无法提供足够防护以防止有害粉尘物质的工作,或由于工作环境或健康状况而无法根据推荐方法使用颗粒物呼吸器的工人。

更新日期:2020-12-28
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