Design and quantitative evaluation of 'Aerosol Bio-Containment Device (ABCD)' for reducing aerosol exposure during infectious aerosol-generating events.

The Coronavirus Disease 2019 (COVID-19) pandemic renewed interest in infectious aerosols and reducing risk of airborne respiratory pathogen transmission, prompting development of devices to protect healthcare workers during airway procedures. However, there are no standard methods for assessing the...

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Main Authors: Michael S Waring, L James Lo, Michael A Kohanski, Elizabeth Kahle, Ian M Marcus, Heather Smith, Kara L Spiller, Sharon L Walker
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0272716
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author Michael S Waring
L James Lo
Michael A Kohanski
Elizabeth Kahle
Ian M Marcus
Heather Smith
Kara L Spiller
Sharon L Walker
author_facet Michael S Waring
L James Lo
Michael A Kohanski
Elizabeth Kahle
Ian M Marcus
Heather Smith
Kara L Spiller
Sharon L Walker
author_sort Michael S Waring
collection DOAJ
description The Coronavirus Disease 2019 (COVID-19) pandemic renewed interest in infectious aerosols and reducing risk of airborne respiratory pathogen transmission, prompting development of devices to protect healthcare workers during airway procedures. However, there are no standard methods for assessing the efficacy of particle containment with these protective devices. We designed and built an aerosol bio-containment device (ABCD) to contain and remove aerosol via an external suction system and tested the aerosol containment of the device in an environmental chamber using a novel, quantitative assessment method. The ABCD exhibited a strong ability to control aerosol exposure in experimental and computational fluid dynamic (CFD) simulated scenarios with appropriate suction use and maintenance of device seals. Using a log-risk-reduction framework, we assessed device containment efficacy and showed that, when combined with other protective equipment, the ABCD can significantly reduce airborne clinical exposure. We propose this type of quantitative analysis serves as a basis for rating efficacy of aerosol protective enclosures.
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spelling doaj.art-fbfa25c6237a4f1a88317b42cc06d4532023-03-16T05:32:06ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01181e027271610.1371/journal.pone.0272716Design and quantitative evaluation of 'Aerosol Bio-Containment Device (ABCD)' for reducing aerosol exposure during infectious aerosol-generating events.Michael S WaringL James LoMichael A KohanskiElizabeth KahleIan M MarcusHeather SmithKara L SpillerSharon L WalkerThe Coronavirus Disease 2019 (COVID-19) pandemic renewed interest in infectious aerosols and reducing risk of airborne respiratory pathogen transmission, prompting development of devices to protect healthcare workers during airway procedures. However, there are no standard methods for assessing the efficacy of particle containment with these protective devices. We designed and built an aerosol bio-containment device (ABCD) to contain and remove aerosol via an external suction system and tested the aerosol containment of the device in an environmental chamber using a novel, quantitative assessment method. The ABCD exhibited a strong ability to control aerosol exposure in experimental and computational fluid dynamic (CFD) simulated scenarios with appropriate suction use and maintenance of device seals. Using a log-risk-reduction framework, we assessed device containment efficacy and showed that, when combined with other protective equipment, the ABCD can significantly reduce airborne clinical exposure. We propose this type of quantitative analysis serves as a basis for rating efficacy of aerosol protective enclosures.https://doi.org/10.1371/journal.pone.0272716
spellingShingle Michael S Waring
L James Lo
Michael A Kohanski
Elizabeth Kahle
Ian M Marcus
Heather Smith
Kara L Spiller
Sharon L Walker
Design and quantitative evaluation of 'Aerosol Bio-Containment Device (ABCD)' for reducing aerosol exposure during infectious aerosol-generating events.
PLoS ONE
title Design and quantitative evaluation of 'Aerosol Bio-Containment Device (ABCD)' for reducing aerosol exposure during infectious aerosol-generating events.
title_full Design and quantitative evaluation of 'Aerosol Bio-Containment Device (ABCD)' for reducing aerosol exposure during infectious aerosol-generating events.
title_fullStr Design and quantitative evaluation of 'Aerosol Bio-Containment Device (ABCD)' for reducing aerosol exposure during infectious aerosol-generating events.
title_full_unstemmed Design and quantitative evaluation of 'Aerosol Bio-Containment Device (ABCD)' for reducing aerosol exposure during infectious aerosol-generating events.
title_short Design and quantitative evaluation of 'Aerosol Bio-Containment Device (ABCD)' for reducing aerosol exposure during infectious aerosol-generating events.
title_sort design and quantitative evaluation of aerosol bio containment device abcd for reducing aerosol exposure during infectious aerosol generating events
url https://doi.org/10.1371/journal.pone.0272716
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