Related references
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Article
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Summary: The study evaluated the viricidal efficacy of Bioquell vaporized hydrogen peroxide on contaminated N95 respirators, finding that a single VHP cycle could completely eradicate bacteriophage. Respirators showed acceptable inhalation/exhalation resistance limits after 3 and 5 cycles of VHP, but filtration efficiency fell below 95% after 5 cycles.
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Summary: This study investigated the effects of vaporized hydrogen peroxide (VHP) decontamination on the fit of N95 respirators, revealing a downward trend in functional integrity of certain models after multiple cycles. It also found that the fit of 3M 1870 N95 respirators was significantly reduced after decontamination and testing on a second user. Inconsistencies between qualitative fit test and QNFT results were uncovered, highlighting potential limitations of current fit testing methods.
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Summary: The study found that vaporized hydrogen peroxide (VHP) effectively inactivated SARS-CoV-2 on FFRs without compromising filtration efficiency. Unexpired N95 respirators retained full filtration efficiency after VHP processing, while expired respirators were not suitable for reprocessing.
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Infectious Diseases
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Summary: This study investigated the possibilities of decontamination and reuse of N95 masks, with plasma sterilization recommended in low-resource settings for mask decontamination. Ethylene oxide is not recommended due to associated hazards, while evaluation of UV decontamination for N95 masks needs to be performed case by case.
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AMERICAN JOURNAL OF INFECTION CONTROL
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