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UVC Germicidal Units: Determination of Dose Received and Parameters to be Considered for N95 Respirator Decontamination and Reuse
Photochemistry and Photobiology ( IF 2.6 ) Pub Date : 2020-09-01 , DOI: 10.1111/php.13322 Indermeet Kohli 1, 2 , Alexis B Lyons 1 , Bob Golding 3 , Shanthi Narla 1 , Angeli E Torres 1 , Angela Parks-Miller 1 , David Ozog 1 , Henry W Lim 1 , Iltefat H Hamzavi 1
Photochemistry and Photobiology ( IF 2.6 ) Pub Date : 2020-09-01 , DOI: 10.1111/php.13322 Indermeet Kohli 1, 2 , Alexis B Lyons 1 , Bob Golding 3 , Shanthi Narla 1 , Angeli E Torres 1 , Angela Parks-Miller 1 , David Ozog 1 , Henry W Lim 1 , Iltefat H Hamzavi 1
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The COVID‐19 pandemic has resulted in an international shortage of personal protective equipment including N95 filtering facepiece respirators (FFRs), resulting in many institutions using ultraviolet germicidal irradiation (UVGI) technology for N95 FFR decontamination. To ensure proper decontamination, it is crucial to determine the dose received by various parts of the FFR in this process. Recently, our group customized a UVGI unit for N95 decontamination. With experimental and theoretical approach, this manuscript discusses the minimum dose received by various parts of the N95 respirator after one complete decontamination cycle with this UVGI unit. The results demonstrate that all parts of the N95 FFR received at least 1 J cm−2 after one complete decontamination cycle with this unit. As there are a variety of UVGI devices and different types of FFRs, this study provides a model by which UVC dose received by different areas of the FFRs can be accurately assessed to ensure proper decontamination for the safety of healthcare providers.
中文翻译：
UVC 杀菌装置：确定接收的剂量和 N95 呼吸器去污和重复使用要考虑的参数
COVID-19 大流行导致国际范围内的个人防护设备短缺，包括 N95 过滤面罩呼吸器 (FFR)，导致许多机构使用紫外线杀菌照射 (UVGI) 技术进行 N95 FFR 净化。为了确保适当的去污，确定 FFR 各个部分在此过程中接收的剂量至关重要。最近，我们集团为N95去污定制了UVGI装置。通过实验和理论方法，本手稿讨论了 N95 呼吸器的各个部分在使用该 UVGI 装置完成一个完整的去污循环后所接收的最小剂量。结果表明，在使用该装置完成一个完整的净化循环后，N95 FFR 的所有部件都至少接收到 1 J cm-2。
更新日期：2020-09-01
中文翻译：
UVC 杀菌装置：确定接收的剂量和 N95 呼吸器去污和重复使用要考虑的参数
COVID-19 大流行导致国际范围内的个人防护设备短缺，包括 N95 过滤面罩呼吸器 (FFR)，导致许多机构使用紫外线杀菌照射 (UVGI) 技术进行 N95 FFR 净化。为了确保适当的去污，确定 FFR 各个部分在此过程中接收的剂量至关重要。最近，我们集团为N95去污定制了UVGI装置。通过实验和理论方法，本手稿讨论了 N95 呼吸器的各个部分在使用该 UVGI 装置完成一个完整的去污循环后所接收的最小剂量。结果表明，在使用该装置完成一个完整的净化循环后，N95 FFR 的所有部件都至少接收到 1 J cm-2。
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