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Filtering facepiece respirators (FFR) are critical for protecting essential personnel and limiting the spread of disease. Due to the current COVID-19 pandemic, FFR supplies are dwindling in many health systems, necessitating re-use of potentially contaminated FFR. Multiple decontamination solutions have been developed to meet this pressing need, including systems designed for bulk decontamination of FFR using vaprous hydrogen peroxide or UV-C radiation. However, the large scale on which these devices operate may not be logistically practical for small or rural health care settings or for ad hoc use at points-of-care. Here, we present the Synchronous UV Decontamination System (SUDS), a novel device for rapidly deployable, point-of-care decontamination using UV-C germicidal irradiation. We designed a compact, easy-to-use device capable of delivering over 2 J_ cm(2) of UV-C radiation in one minute. We experimentally tested SUDS’ microbicidal capacity and found that it eliminates near all virus from the surface of tested FFRs, with less efficacy against pathogens embedded in the inner layers of the masks. This short decontamination time should enable care-providers to incorporate decontamination of FFR into a normal donning and doffing routine following patient encounters.
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?:doi
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10.1016/j.ajic.2020.11.010
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document_parses/pmc_json/PMC7654367.xml.json
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UV-C Tower for point-of-care decontamination of filtering facepiece respirators
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