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UVC Germicidal Units: Determination of Dose Received and Parameters to be Considered for N95 Respirator Decontamination and Reuse.
Photochem Photobiol. 2020 09; 96(5):1083-1087.PP

Abstract

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.

Authors+Show Affiliations

Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health System, Detroit, MI. Department of Physics and Astronomy, Wayne State University, Detroit, MI.Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health System, Detroit, MI.Daavlin, Bryan, OH.Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health System, Detroit, MI.Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health System, Detroit, MI.Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health System, Detroit, MI.Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health System, Detroit, MI.Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health System, Detroit, MI.Photomedicine and Photobiology Unit, Department of Dermatology, Henry Ford Health System, Detroit, MI.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32767758

Citation

Kohli, Indermeet, et al. "UVC Germicidal Units: Determination of Dose Received and Parameters to Be Considered for N95 Respirator Decontamination and Reuse." Photochemistry and Photobiology, vol. 96, no. 5, 2020, pp. 1083-1087.
Kohli I, Lyons AB, Golding B, et al. UVC Germicidal Units: Determination of Dose Received and Parameters to be Considered for N95 Respirator Decontamination and Reuse. Photochem Photobiol. 2020;96(5):1083-1087.
Kohli, I., Lyons, A. B., Golding, B., Narla, S., Torres, A. E., Parks-Miller, A., Ozog, D., Lim, H. W., & Hamzavi, I. H. (2020). UVC Germicidal Units: Determination of Dose Received and Parameters to be Considered for N95 Respirator Decontamination and Reuse. Photochemistry and Photobiology, 96(5), 1083-1087. https://doi.org/10.1111/php.13322
Kohli I, et al. UVC Germicidal Units: Determination of Dose Received and Parameters to Be Considered for N95 Respirator Decontamination and Reuse. Photochem Photobiol. 2020;96(5):1083-1087. PubMed PMID: 32767758.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - UVC Germicidal Units: Determination of Dose Received and Parameters to be Considered for N95 Respirator Decontamination and Reuse. AU - Kohli,Indermeet, AU - Lyons,Alexis B, AU - Golding,Bob, AU - Narla,Shanthi, AU - Torres,Angeli E, AU - Parks-Miller,Angela, AU - Ozog,David, AU - Lim,Henry W, AU - Hamzavi,Iltefat H, Y1 - 2020/09/07/ PY - 2020/05/05/received PY - 2020/07/30/revised PY - 2020/08/03/accepted PY - 2020/8/9/pubmed PY - 2020/10/8/medline PY - 2020/8/9/entrez SP - 1083 EP - 1087 JF - Photochemistry and photobiology JO - Photochem Photobiol VL - 96 IS - 5 N2 - 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. SN - 1751-1097 UR - https://www.unboundmedicine.com/medline/citation/32767758/UVC_Germicidal_Units:_Determination_of_Dose_Received_and_Parameters_to_be_Considered_for_N95_Respirator_Decontamination_and_Reuse_ L2 - https://doi.org/10.1111/php.13322 DB - PRIME DP - Unbound Medicine ER -