About: Effect of Dry Heat and Autoclave Decontamination Cycles on N95 FFRs

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An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Effect of Dry Heat and Autoclave Decontamination Cycles on N95 FFRs
Creator	Chu, Steven Cui, Yi Liao, Lei Xiao, Wang Anderegg, Loïc Doyle, John Meisenhelder, Cole Ngooi, Chiu Preecha, Andrew
Source	MedRxiv
abstract	Current shortages of Filtering Facepiece Respirators (FFRs) have created a demand for effective methods for N95 decontamination and reuse. Before implementing any reuse strategy it is important to determine what effects the proposed method has on the physical functioning of the FFR. Here we investigate the effects of two potential methods for decontamination; dry heat at 95 {degrees}C, and autoclave treatments. We test both fit and filtration efficiency for each method. For the dry heat treatment we consider the 3M 1860, 3M 1870, and 3M8210+ models. After five cycles of the dry heating method, all three FFR models pass both fit and filtration tests, showing no degradation. For the autoclave tests we consider the 3M 1870, and the 3M 8210+. We find significant degradation of the FFRs following the 121 {degrees}C autoclave cycles. The molded mask tested (3M 8210+) failed fit testing after just 1 cycle in the autoclave. The pleated (3M 1870) mask passed fit testing for 5 cycles, but failed filtration testing. The 95 {degrees}C dry heat cycle is scalable to over a thousand masks per day in a hospital setting, and is above the temperature which has been shown to achieve the requisite 3 log kill of SARS-CoV-2[1], making it a promising method for N95 decontamination and reuse.
has issue date	2020-06-02(xsd:dateTime)
bibo:doi	10.1101/2020.05.29.20114199
has license	medrxiv
sha1sum (hex)	356a3bc606944e49e2495465ebafdbdbcf41e9b2
schema:url	https://doi.org/10.1101/2020.05.29.20114199
resource representing a document's title	Effect of Dry Heat and Autoclave Decontamination Cycles on N95 FFRs
resource representing a document's body	covid:356a3bc606944e49e2495465ebafdbdbcf41e9b2#body_text
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