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Ventilation strategies and design impacts on indoor airborne transmission: A review
Abstract The COVID-19 outbreak has brought the indoor airborne transmission issue to the forefront. Although ventilation systems provide clean air and dilute indoor contaminated air, there is strong evidence that airborne transmission is the main route for contamination spread. This review paper aims to critically investigate ventilation impacts on particle spread and identify efficient ventilation strategies in controlling aerosol distribution in clinical and non-clinical environments. This article also examines influential ventilation design features (i.e., exhaust location) affecting ventilation performance in preventing aerosols spread. This paper shortlisted published documents for a review based on identification (keywords), pre-processing, screening, and eligibility of these articles. The literature review emphasizes the importance of ventilation systems’ design and demonstrates all strategies (i.e., mechanical ventilation) could efficiently remove particles if appropriately designed. The study highlights the need for occupant-based ventilation systems, such as personalized ventilation instead of central systems, to reduce cross-infections. The literature underlines critical impacts of design features like ventilation rates and the number and location of exhausts and suggests designing systems considering airborne transmission. This review underpins that a higher ventilation rate should not be regarded as a sole indicator for designing ventilation systems because it cannot guarantee reducing risks. Using filtration and decontamination devices based on building functionalities and particle sizes can also increase ventilation performance. This paper suggests future research on optimizing ventilation systems, particularly in high infection risk spaces such as multi-storey hotel quarantine facilities. This review contributes to adjusting ventilation facilities to control indoor aerosol transmission.
Highlights Impacts of ventilation modes and design on indoor airborne transmission were reviewed. Critical ventilation design features affecting contaminations spread were identified. Filtration and decontamination devices are suggested to be used with ventilation. The article emphasized shifting the paradigm to personalized ventilation systems. It is a reference for adjusting indoor particle distribution through ventilation.
Ventilation strategies and design impacts on indoor airborne transmission: A review
Abstract The COVID-19 outbreak has brought the indoor airborne transmission issue to the forefront. Although ventilation systems provide clean air and dilute indoor contaminated air, there is strong evidence that airborne transmission is the main route for contamination spread. This review paper aims to critically investigate ventilation impacts on particle spread and identify efficient ventilation strategies in controlling aerosol distribution in clinical and non-clinical environments. This article also examines influential ventilation design features (i.e., exhaust location) affecting ventilation performance in preventing aerosols spread. This paper shortlisted published documents for a review based on identification (keywords), pre-processing, screening, and eligibility of these articles. The literature review emphasizes the importance of ventilation systems’ design and demonstrates all strategies (i.e., mechanical ventilation) could efficiently remove particles if appropriately designed. The study highlights the need for occupant-based ventilation systems, such as personalized ventilation instead of central systems, to reduce cross-infections. The literature underlines critical impacts of design features like ventilation rates and the number and location of exhausts and suggests designing systems considering airborne transmission. This review underpins that a higher ventilation rate should not be regarded as a sole indicator for designing ventilation systems because it cannot guarantee reducing risks. Using filtration and decontamination devices based on building functionalities and particle sizes can also increase ventilation performance. This paper suggests future research on optimizing ventilation systems, particularly in high infection risk spaces such as multi-storey hotel quarantine facilities. This review contributes to adjusting ventilation facilities to control indoor aerosol transmission.
Highlights Impacts of ventilation modes and design on indoor airborne transmission were reviewed. Critical ventilation design features affecting contaminations spread were identified. Filtration and decontamination devices are suggested to be used with ventilation. The article emphasized shifting the paradigm to personalized ventilation systems. It is a reference for adjusting indoor particle distribution through ventilation.
Ventilation strategies and design impacts on indoor airborne transmission: A review
Izadyar, Nima (Autor:in) / Miller, Wendy (Autor:in)
Building and Environment ; 218
29.04.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
VENTILATION STRATEGIES TO MINIMISE THE AIRBORNE VIRUS TRANSMISSION IN INDOOR ENVIRONMENTS
TIBKAT | 2021
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