Constance Wielick
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Louisa Fiona Ludwig-Begall
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Lorene Dams
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Ravo Michele Razafimahefa
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Pierre-Francois Demeuldre
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In the context of the SARS-CoV-2 pandemic, reuse of surgical masks and filtering facepiece respirators has been recommended. Their reuse necessitates procedures to inactivate contaminating human respiratory and oral pathogens. We previously demonstrated decontamination of masks and respirators contaminated with an infectious SARS-CoV-2 surrogate via ultraviolet germicidal irradiation, vaporised hydrogen peroxide, and use of dry heat. Here, we show that these same methods efficiently inactivate a more resistant, non-enveloped oral virus; decontamination of infectious murine norovirus-contaminated masks and respirators reduced viral titres by over four orders of magnitude on mask or respirator coupons.
P4‐22: The effect and safety of ultraviolet germicidal irradiation on reusing N95 filtering facepiece respirators at weekly intervals