ArticleJournal of hazardous materials2022
Optimized mechanism for fast removal of infectious pathogen-laden aerosols in the negative-pressure unit.
Article in Journal of hazardous materials, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Associations of Indoor Nighttime Ventilation with the Relative Abundances of Typical Pathogenic Bacteria and Fungi in Settled Dusts from Floor, Desk, and Bed of University Dormitories.Microorganisms · 2026Article
- Development of optimal indoor air disinfection and ventilation protocols for airborne infectious diseases.PloS one · 2024Article
- Mitigation of breathing contaminants: Exhaust location optimization for indoor space with impinging jet ventilation supply.Journal of building engineering · 2023Article
- Ventilation reconstruction in bathrooms for restraining hazardous plume: Mitigate COVID-19 and beyond.Journal of hazardous materials · 2022Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
It has been frequently emphasized that highly contagious respiratory disease pathogens (such as SARS-CoV-2) are transmitted to the other hosts in the form of micro-sized aerosols (< 5 μm) in the air without physical contacts. Hospital environments such as negative-pressure unit are considered being consistently exposed to pathogens, so it is essential to quickly discharge them through the effective ventilation system. To achieve that, in the present study, we propose the optimized ventilation mechanism and design for the fastest removal of pathogen-laden aerosol using numerical simulations. We quantitatively evaluated the aerosol removal performance of various ventilation configurations (combinations of air exhaust and supply ducts), and found that the key mechanism is to form the coherent (preferentially upward) airflow structure to surround the respiratory flow containing the aerosol cluster. We believe that the present findings will play a critical role in developing the high-efficiency negative-pressure facility irrespective of its size and environments.
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Registered trials
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