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http://hdl.handle.net/10397/109040
Title: | Effectiveness of air cleaner on mitigating the transmission of respiratory disease in a dental clinic environment | Authors: | Yang, G Wang, Y Chan, KC Mui, KW Flemmig, TF Ng, ST Chao, CYH Fu, SC |
Issue Date: | 2024 | Source: | Building simulation, Latest articles, Published: 28 August 2024, https://doi.org/10.1007/s12273-024-1159-9 | Abstract: | In dental clinics with an open floor plan, the risk of patient-to-patient transmission of respiratory disease is a concern. During dental procedures large amounts of bioaerosol are produced and patients cannot wear personal protective equipment. This paper examines how to effectively deploy air cleaner to reduce the infection risk in dental clinics with an open floor plan. Various locations of air cleaners at various clean air delivery rates (CADRs) were investigated. The dispersion of bioaerosol was studied through numerical simulations, and risk assessment was performed by a dose-response method. The findings indicated that dental patients downstream of the background ventilation have a higher infection risk than those to the left and right of an infected patient (i.e., the source). The lowest infection risks for the adjacent patients were found when the air cleaner was place opposite to the dentists, i.e., on the floor at low CADR levels of 2.2 m3/min or on the bench at CADR levels of 4.4 m3/min or greater. The results of this study indicated that air cleaner can mitigate the risk of patient-to-patient transmission of SARS-CoV-2 in dental clinics with an open floor plan. Background CADR levels determine the optimal placement of air cleaners. | Keywords: | Air cleaner location CFD simulation Dental clinic Infection risk Respiratory disease |
Publisher: | Tsinghua University Press | Journal: | Building simulation | ISSN: | 1996-3599 | EISSN: | 1996-8744 | DOI: | 10.1007/s12273-024-1159-9 | Rights: | © The Author(s) 2024 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ The following publication Yang, G., Wang, Y., Chan, K.C. et al. Effectiveness of air cleaner on mitigating the transmission of respiratory disease in a dental clinic environment. Build. Simul. (2024) is available at https://doi.org/10.1007/s12273-024-1159-9. |
Appears in Collections: | Journal/Magazine Article |
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s12273-024-1159-9.pdf | 3.26 MB | Adobe PDF | View/Open |
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