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Supercritical carbon dioxide-based cleaning and sterilization treatments for the reuse of filtering facepiece respirators FFP2 in the context of COVID-19 pandemic

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARIO, Anaïs
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAUBERT, Guillaume
hal.structure.identifierTranslational Innovation in Medicine and Complexity / Recherche Translationnelle et Innovation en Médecine et Complexité - UMR 5525 [TIMC]
dc.contributor.authorALCARAZ, Jean-Pierre
hal.structure.identifierLaboratoire de physique des gaz et des plasmas [LPGP]
dc.contributor.authorBORRA, Jean-Pascal
hal.structure.identifierLaboratoire de physique des gaz et des plasmas [LPGP]
dc.contributor.authorJIDENKO, N.
hal.structure.identifierInstitut de Radioprotection et de Sûreté Nucléaire [IRSN]
dc.contributor.authorBARRAULT, Mathieu
hal.structure.identifierInstitut de Radioprotection et de Sûreté Nucléaire [IRSN]
dc.contributor.authorBOURROUS, Soleiman
hal.structure.identifierInstitut de Radioprotection et de Sûreté Nucléaire [IRSN]
dc.contributor.authorMOCHO, Victor
hal.structure.identifierInstitut de Radioprotection et de Sûreté Nucléaire [IRSN]
dc.contributor.authorOUF, François
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMARRE, Samuel
hal.structure.identifierTranslational Innovation in Medicine and Complexity / Recherche Translationnelle et Innovation en Médecine et Complexité - UMR 5525 [TIMC]
dc.contributor.authorCINQUIN, Philippe
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
dc.date.issued2022
dc.identifier.issn0896-8446
dc.description.abstractEnSupercritical Carbon Dioxide treatment of clean and soiled Filtering Face-Piece respirators is shown to meet mandatory requirements for safe reuse of FFP2. Preliminary tests enabled us to select optimal conditions for Supercritical Carbon Dioxide treatment of FFP2, for one hour at 343 K under 7.5 MPa, with a biocide solution. FFP2s from Paul Boyé ® were then tested before and after Supercritical Carbon Dioxide treatment with a soiling solution and a biological indicator (i.e. spores of GeoBacillus stearothermophilus) with respect to three objectives: (i) washing of organic deposits, (ii) sterilization (i.e. spores inactivation) and (iii) preservation of the filtration performances. The proposed Supercritical Carbon Dioxide treatment fulfils these three criterions, with effective decontamination of spores and promising washing preserving FFP2 requirements for filtration efficiency of aerosol (> 94%) with acceptable pressure drop (< 240 Pa). As a simple and low-cost one-step recycling method, Supercritical Carbon Dioxide fits to economical and sustainable development standpoints but also allows one to come back to good practices of face protective equipment use, lowering eventual shortage and tensions for most countries importing these respirators.
dc.language.isoen
dc.publisherElsevier
dc.subject.enFFP2 face protective equipment
dc.subject.ensupercritical CO2
dc.subject.encleaning
dc.subject.ensterilization
dc.subject.enfiltering performances
dc.title.enSupercritical carbon dioxide-based cleaning and sterilization treatments for the reuse of filtering facepiece respirators FFP2 in the context of COVID-19 pandemic
dc.typeArticle de revue
dc.identifier.doi10.1016/j.supflu.2021.105428
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Supercritical Fluids
bordeaux.page105428 (8 p.)
bordeaux.volume180
bordeaux.peerReviewedoui
hal.identifierhal-03384956
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03384956v1
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