N95 Filtering Facepiece Respirator Ultraviolet Germicidal Irradiation (UVGI) Process for Decontamination and Reuse [open pdf - 0B]
From the Introduction: "The ongoing pandemic of SARS-CoV-2 resulting in COVID-19 has severely stressed the worldwide healthcare system and has created dangerous shortages of personal protective equipment (PPE) including N95 filtering facepiece respirators (N95 FFRs). In an effort to extend the stockpile of N95 FFRs at our institution, we developed a decontamination procedure involving the delivery of ultraviolet germicidal irradiation (UVGI) to used N95 FFRs. The evidence base supporting this program includes: 1) UVGI has been shown to effectively inactivate a wide range of human pathogens including coronaviruses and other human respiratory viruses; 2) UVGI has been demonstrated to inactivate human respiratory viruses, including coronaviruses, on various models of N95 FFRs; 3) levels of UVGI needed to inactive human respiratory viruses are well below the level of irradiation that adversely affects the fit and filtration characteristics of N95 FFRs; and 4) UVGI can be safely administered when appropriate safeguards are in place. Herein, we briefly describe our procedure to decontaminate and reuse N95 FFRs."
Nebraska Medicine: https://www.nebraskamed.com/