About: A Scalable Method of Applying Heat and Humidity for Decontamination of N95 Respirators During the COVID-19 Crisis

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About: A Scalable Method of Applying Heat and Humidity for Decontamination of N95 Respirators During the COVID-19 Crisis Goto Sponge NotDistinct Permalink

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

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	A Scalable Method of Applying Heat and Humidity for Decontamination of N95 Respirators During the COVID-19 Crisis
Creator	Chu, Steven Cui, Yi Liao, Lei Xiao, Wang Anderegg, Loïc »more»
source	MedRxiv
abstract	A lack of N95 respirators during the COVID-19 crisis has placed healthcare workers at risk. It is important for any N95 reuse strategy to determine the effects that proposed protocols would have on the physical functioning of the mask, as well as the practical aspects of implementation. Here we propose and implement a method of heating N95 respirators with moisture (85{degrees}C, 60-85% humidity). We test both mask filtration efficiency and fit to validate this process. Our tests focus on the 3M 1860 and 3M 8210 Plus N95 models. After five cycles of the heating procedure, both respirators pass quantitative fit testing (score of >100) and show no degradation of mask filtration efficiency. We also test the Chen Heng V9501 KN95 and HKYQ N95 finding no degradation of mask filtration efficiency, however even for unheated masks these scored <50 for every fit test. The heating method presented here is scalable from individual masks to over a thousand a day with a single industrial convection oven, making this method practical for local application inside health-care facilities.
has issue date	2020-04-14(xsd:dateTime)
bibo:doi	10.1101/2020.04.09.20059758
has license	medrxiv
sha1sum (hex)	e2aded4533c094ee0354db729f9f7925dd79947d
schema:url	https://doi.org/10.1101/2020.04.09.20059758
resource representing a document's title	A Scalable Method of Applying Heat and Humidity for Decontamination of N95 Respirators During the COVID-19 Crisis
resource representing a document's body	covid:e2aded4533c094ee0354db729f9f7925dd79947d#body_text
is schema:about of	named entity 'moisture' named entity 'heating' named entity 'testing' named entity 'focus' named entity 'degradation' »more»

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