Article ; Online: Decontamination and Reuse of N95 Filtering Facepiece Respirators: Where Do We Stand?
2020 Volume 132, Issue 1, Page(s) 2–14
Abstract: The coronavirus disease 2019 (COVID-19) pandemic created an extraordinary demand for N95 and similarly rated filtering facepiece respirators (FFR) that remains unmet due to limited stock, production constraints, and logistics. Interest in decontamination ...
| Abstract | The coronavirus disease 2019 (COVID-19) pandemic created an extraordinary demand for N95 and similarly rated filtering facepiece respirators (FFR) that remains unmet due to limited stock, production constraints, and logistics. Interest in decontamination and reuse of FFR, a product class designed for single use in health care settings, has undergone a parallel surge due to shortages. A worthwhile decontamination method must provide effective inactivation of the targeted pathogen(s), and preserve particle filtration, mask fit, and safety for a subsequent user. This discussion reviews the background of the current shortage, classification, structure, and functional aspects of FFR, and potentially effective decontamination methods along with reference websites for those seeking updated information and guidance. The most promising techniques utilize heat, hydrogen peroxide, microwave-generated steam, or ultraviolet light. Many require special or repurposed equipment and a detailed operational roadmap specific to each setting. While limited, research is growing. There is significant variation between models with regard to the ability to withstand decontamination yet remain protective. The number of times an individual respirator can be reused is often limited by its ability to maintain a tight fit after multiple uses rather than by the decontamination method itself. There is no single solution for all settings; each individual or institution must choose according to their need, capability, and available resources. As the current pandemic is expected to continue for months to years, and the possibility of future airborne biologic threats persists, the need for plentiful, effective respiratory protection is stimulating research and innovation. |
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| MeSH term(s) | COVID-19/prevention & control ; COVID-19/transmission ; Decontamination ; Equipment Contamination ; Equipment Reuse ; Humans ; Infectious Disease Transmission, Patient-to-Professional/prevention & control ; Inhalation Exposure/adverse effects ; Inhalation Exposure/prevention & control ; N95 Respirators/virology ; Occupational Exposure/adverse effects ; Occupational Exposure/prevention & control ; Occupational Health ; Risk Assessment ; Risk Factors |
| Keywords | covid19 |
| Language | English |
| Publishing date | 2020-09-12 |
| Publishing country | United States |
| Document type | Journal Article ; Review |
| ZDB-ID | 80032-6 |
| ISSN | 1526-7598 ; 0003-2999 |
| ISSN (online) | 1526-7598 |
| ISSN | 0003-2999 |
| DOI | 10.1213/ANE.0000000000005254 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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