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Deprecated: Implicit conversion from float 334.4 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Front+Med+(Lausanne) 2020 ; 7 (ä): 584036 Nephropedia Template TP
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Controlled Heat and Humidity-Based Treatment for the Reuse of Personal Protective Equipment: A Pragmatic Proof-of-Concept to Address the Mass Shortage of Surgical Masks and N95/FFP2 Respirators and to Prevent the SARS-CoV2 Transmission #MMPMID33195335
Bernard L; Desoubeaux G; Bodier-Montagutelli E; Pardessus J; Brea D; Allimonnier L; Eymieux S; Raynal PI; Vasseur V; Vecellio L; Mathe L; Guillon A; Lanotte P; Pourchez J; Verhoeven PO; Esnouf S; Ferry M; Eterradossi N; Blanchard Y; Brown P; Roingeard P; Alcaraz JP; Cinquin P; Si-Tahar M; Heuze-Vourc'h N
Front Med (Lausanne) 2020[]; 7 (ä): 584036 PMID33195335show ga
Background: The coronavirus infectious disease-2019 (COVID-19) pandemic has led to an unprecedented shortage of healthcare resources, primarily personal protective equipment like surgical masks, and N95/filtering face piece type 2 (FFP2) respirators. Objective: Reuse of surgical masks and N95/FFP2 respirators may circumvent the supply chain constraints and thus overcome mass shortage. Methods, design, setting, and measurement: Herein, we tested the effects of dry- and moist-air controlled heating treatment on structure and chemical integrity, decontamination yield, and filtration performance of surgical masks and FFP2 respirators. Results: We found that treatment in a climate chamber at 70 degrees C during 1 h with 75% humidity rate was adequate for enabling substantial decontamination of both respiratory viruses, oropharyngeal bacteria, and model animal coronaviuses, while maintaining a satisfying filtering capacity. Limitations: Further studies are now required to confirm the feasibility of the whole process during routine practice. Conclusion: Our findings provide compelling evidence for the recycling of pre-used surgical masks and N95/FFP2 respirators in case of imminent mass shortfall.