改进 N95 过滤式面罩贴合度的框架。
Frame to Improve the Fit of N95 Filtering Face Mask Respirators.
机构信息
Department of Respiratory and Interventional Pulmonology, Keck Medical Center of the University of Southern California (Mr Stemen); Caruso Department of Otolaryngology-Head and Neck Surgery (Dr Ge, Dr Ference); Department of Radiology (Dr Hwang); Department of Biomedical Engineering, Viterbi School of Engineering of the University of Southern California (Dr Hwang); Tetra Bio Distributed (Mr Qaddoumi, Dr Roden; Section of Infectious Disease, Department of Medicine (Dr Nanda), Keck School of Medicine of the University of Southern California, Los Angeles, California.
出版信息
J Occup Environ Med. 2021 Jun 1;63(6):e362-e366. doi: 10.1097/JOM.0000000000002223.
OBJECTIVE
Test a device that can improve upon the seal of filtering face mask respirators (FFRs).
METHODS
A 3-D prototype for a fit improvement frame (FIF) was created and quantitative fit testing was performed for FFRs with and without the FIF.
RESULTS
Thirty eight volunteers underwent fit testing. The overall fit pass rate was 100% for the 3M model 1860 masks, 50% for the 3M model 8511 masks, 13% for the BYD CARE model DE2322, and 7% for the Honeywell DC300N95. When using the FIF the overall passing rate increase to 87% for the DE2322 + FIF (P < 0.01) and for the DC300N95 + FIF the passing rate increase to 73% (P < 0.01).
CONCLUSION
The FIF is effective in improving the mask fit of a common flat fold N95 masks and potentially other N95 masks.
目的
测试一种可改善过滤式面罩呼吸器（FFR）密封性能的装置。
方法
创建了一个用于贴合改进框架（FIF）的 3D 原型，并对带有和不带有 FIF 的 FFR 进行了定量贴合测试。
结果
38 名志愿者接受了贴合测试。3M 型号 1860 口罩的整体贴合合格率为 100%，3M 型号 8511 口罩为 50%，比亚迪 CARE 型号 DE2322 为 13%，霍尼韦尔 DC300N95 为 7%。使用 FIF 时，DE2322+FIF 的整体合格率提高到 87%（P<0.01），而 DC300N95+FIF 的合格率提高到 73%（P<0.01）。
结论
FIF 可有效改善常见的平面折叠式 N95 口罩和其他 N95 口罩的贴合度。
Zotero 插件