医用外科口罩细菌过滤效率与非油性颗粒过滤效率的关系

Relationship between Bacterial Filtration Efficiency and Non-oil Particle Filtration Efficiency in Surgical Masks

目的研究医用外科口罩的非油性颗粒过滤效率(PFE)与细菌过滤效率(BFE)这两个指标之间是否存在相关性。方法对2012年-2018年医用外科口罩的非油性颗粒过滤效率和细菌过滤效率检测数据进行对比分析。结果医用外科口罩对非油性颗粒过滤效率达到80%以上时,其细菌过滤效率能达到95%。结论医用外科口罩要达到细菌过滤效率95%的要求,必须提高颗粒过滤效率的限度,数据分析结果可为应急快速检验和滤料快筛提供参考,也可为YY 0469标准修订提供参考。

Objective In order to find whether there is the correlation between the non-oil particle filtration efficiency(PFE) and the bacterial filtration efficiency(BFE) of medical surgical masks. Methods Nonoil particle filtration efficiency and bacterial filtration efficiency were compared and analyzed through the test data of medical surgical masks from 2012 to 2018. Results When the non-oil particle filtration efficiency of medical surgical mask is over 80%, the bacterial filtration efficiency can reach 95%. Conclusion In order to reach the requirement of 95% bacterial filtration efficiency, surgical medical mask must improve the limit of non-oil particle filtration efficiency. The results of data analysis can provide reference for emergency inspection and filter material rapid inspection, and also provide reference for the revision of YY 0469 standard.