Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA.
Am J Infect Control. 2013 Jan;41(1):80-2. doi: 10.1016/j.ajic.2012.01.010. Epub 2012 Apr 6.
Physical penetration and infectivity penetration of adenovirus and influenza virus aerosols through respirators were measured to better characterize the effectiveness of filtering facepiece respirators against airborne virus. A physical penetration of 2%-5% was found. However, large sample-to-sample variation made it difficult to quantify the difference in physical penetration caused by the different virus aerosols. Infectivity penetration of adenovirus was much lower than physical penetration, indicating that the latter provides a conservative estimate for respirator performance.
通过测量腺病毒和流感病毒气溶胶对呼吸器的物理穿透率和感染性穿透率，更好地描述过滤式面罩呼吸器对空气传播病毒的有效性。发现物理穿透率为 2%-5%。然而，由于不同病毒气溶胶导致的物理穿透率的差异，样本间的巨大差异使得很难对其进行量化。腺病毒的感染性穿透率远低于物理穿透率，这表明后者为呼吸器性能提供了一个保守的估计。
