Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2

Detalhes bibliográficos
Autor(a) principal: Ruiz, Manuel Chavez
Data de Publicação: 2021
Outros Autores: Camargo, Betsabe Ruffner, Torres, Lenin Rueda, Bellido, Cristofer
Tipo de documento: preprint
Idioma: spa
Título da fonte: SciELO Preprints
Texto Completo: https://preprints.scielo.org/index.php/scielo/preprint/view/2266
Resumo: Objective. In the present work, a methodology has been developed for the evaluation of respiratory protection in surgical masks and respirators commonly used in the peruvian population, considering the particles most likely to contain active SARS-COV-2 virus, which includes the filtration capacity of the material used and the adjustment provided by the respiratory protection device. Methodology. A direct linear relationship has been determined between the logarithm of the concentration of suspended particles in air and the elapsed time; ao that, it is possible to compare the amount of internal and external particles to the mask or respirator in the same period of time and to know the percentage of respiratory protection of each sample evaluated. Conclusions: Concordance is obtained between the values ​​obtained for respiratory protection and those expected considering the level of filtration of the material used that makes up each surgical mask or respirator, and the level of adjustment presented by them, observing a significant increase in the levels of protection improving the fit in them.
id SCI-1_232aecc22d5820217d7948bd89985b95
oai_identifier_str oai:ops.preprints.scielo.org:preprint/2266
network_acronym_str SCI-1
network_name_str SciELO Preprints
repository_id_str
spelling Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2SARS-COV-2Surgical maskRespiratorFiltration efficiencyAerosolsSARS-COV-2Mascarilla quirúrgicaRespiradorEficiencia de filtraciónAerosolesObjective. In the present work, a methodology has been developed for the evaluation of respiratory protection in surgical masks and respirators commonly used in the peruvian population, considering the particles most likely to contain active SARS-COV-2 virus, which includes the filtration capacity of the material used and the adjustment provided by the respiratory protection device. Methodology. A direct linear relationship has been determined between the logarithm of the concentration of suspended particles in air and the elapsed time; ao that, it is possible to compare the amount of internal and external particles to the mask or respirator in the same period of time and to know the percentage of respiratory protection of each sample evaluated. Conclusions: Concordance is obtained between the values ​​obtained for respiratory protection and those expected considering the level of filtration of the material used that makes up each surgical mask or respirator, and the level of adjustment presented by them, observing a significant increase in the levels of protection improving the fit in them.Objetivo. En el presente trabajo se ha desarrollado una metodología para la evaluación de la protección respiratoria en mascarillas quirúrgicas y respiradores de uso común en la población peruana, considerando las partículas de mayor probabilidad de contener virus activo del SARS-COV-2, la cual incluye la capacidad de filtración del material empleado y el ajuste proporcionado por el dispositivo de protección respiratoria. Metodología. Se ha determinado una relación lineal directa entre el logaritmo de la concentración de partículas suspendidas en aire y el tiempo transcurrido; por lo cual es posible comparar la cantidad de partículas internas y externas a la mascarilla o respirador en un mismo período de tiempo y conocer el porcentaje de protección respiratoria de cada muestra evaluada. Conclusiones: Se obtiene concordancia entre los valores obtenidos de protección respiratoria y los esperados considerando el nivel de filtración del material empleado que compone cada mascarilla quirúrgica o respirador, y el nivel de ajuste presentado por los mismos, observándose un incremento significativo en los niveles de protección respiratoria mejorando el ajuste en los mismos. SciELO PreprintsSciELO PreprintsSciELO Preprints2021-05-13info:eu-repo/semantics/preprintinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://preprints.scielo.org/index.php/scielo/preprint/view/226610.1590/SciELOPreprints.2266spahttps://preprints.scielo.org/index.php/scielo/article/view/2266/3787Copyright (c) 2021 Manuel Chavez Ruiz, Betsabe Ruffner Camargo, Lenin Rueda Torres, Cristofer Bellidohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessRuiz, Manuel ChavezCamargo, Betsabe Ruffner Torres, Lenin RuedaBellido, Cristofer reponame:SciELO Preprintsinstname:SciELOinstacron:SCI2021-05-10T06:10:20Zoai:ops.preprints.scielo.org:preprint/2266Servidor de preprintshttps://preprints.scielo.org/index.php/scieloONGhttps://preprints.scielo.org/index.php/scielo/oaiscielo.submission@scielo.orgopendoar:2021-05-10T06:10:20SciELO Preprints - SciELOfalse
dc.title.none.fl_str_mv Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2
Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2
title Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2
spellingShingle Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2
Ruiz, Manuel Chavez
SARS-COV-2
Surgical mask
Respirator
Filtration efficiency
Aerosols
SARS-COV-2
Mascarilla quirúrgica
Respirador
Eficiencia de filtración
Aerosoles
title_short Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2
title_full Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2
title_fullStr Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2
title_full_unstemmed Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2
title_sort Modifications of the fit and combination of surgical masks and KN95 respirators to increase respiratory protection against SARS-CoV-2
author Ruiz, Manuel Chavez
author_facet Ruiz, Manuel Chavez
Camargo, Betsabe Ruffner
Torres, Lenin Rueda
Bellido, Cristofer
author_role author
author2 Camargo, Betsabe Ruffner
Torres, Lenin Rueda
Bellido, Cristofer
author2_role author
author
author
dc.contributor.author.fl_str_mv Ruiz, Manuel Chavez
Camargo, Betsabe Ruffner
Torres, Lenin Rueda
Bellido, Cristofer
dc.subject.por.fl_str_mv SARS-COV-2
Surgical mask
Respirator
Filtration efficiency
Aerosols
SARS-COV-2
Mascarilla quirúrgica
Respirador
Eficiencia de filtración
Aerosoles
topic SARS-COV-2
Surgical mask
Respirator
Filtration efficiency
Aerosols
SARS-COV-2
Mascarilla quirúrgica
Respirador
Eficiencia de filtración
Aerosoles
description Objective. In the present work, a methodology has been developed for the evaluation of respiratory protection in surgical masks and respirators commonly used in the peruvian population, considering the particles most likely to contain active SARS-COV-2 virus, which includes the filtration capacity of the material used and the adjustment provided by the respiratory protection device. Methodology. A direct linear relationship has been determined between the logarithm of the concentration of suspended particles in air and the elapsed time; ao that, it is possible to compare the amount of internal and external particles to the mask or respirator in the same period of time and to know the percentage of respiratory protection of each sample evaluated. Conclusions: Concordance is obtained between the values ​​obtained for respiratory protection and those expected considering the level of filtration of the material used that makes up each surgical mask or respirator, and the level of adjustment presented by them, observing a significant increase in the levels of protection improving the fit in them.
publishDate 2021
dc.date.none.fl_str_mv 2021-05-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/preprint
info:eu-repo/semantics/publishedVersion
format preprint
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://preprints.scielo.org/index.php/scielo/preprint/view/2266
10.1590/SciELOPreprints.2266
url https://preprints.scielo.org/index.php/scielo/preprint/view/2266
identifier_str_mv 10.1590/SciELOPreprints.2266
dc.language.iso.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv https://preprints.scielo.org/index.php/scielo/article/view/2266/3787
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv SciELO Preprints
SciELO Preprints
SciELO Preprints
publisher.none.fl_str_mv SciELO Preprints
SciELO Preprints
SciELO Preprints
dc.source.none.fl_str_mv reponame:SciELO Preprints
instname:SciELO
instacron:SCI
instname_str SciELO
instacron_str SCI
institution SCI
reponame_str SciELO Preprints
collection SciELO Preprints
repository.name.fl_str_mv SciELO Preprints - SciELO
repository.mail.fl_str_mv scielo.submission@scielo.org
_version_ 1797047822881652736

Registros relacionados