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Computational fluid dynamics was utilized to analyze the dispersion of particulate matter, with a specific focus on window screens featuring 6 distinct pore sizes ranging from 0.8\u2009mm to 2\u2009mm and 2 different thicknesses of 0.5\u2009mm and 0.1\u2009mm. Results indicate that the presence of a window screen offers significant advantages in controlling particle infiltration compared to scenarios without a screen, as larger particles tend to pass directly through the window within the breathing zone. The scenario without window screens minimizes pressure drop but lacks enhanced particle capture capabilities. However, for effective particle reduction, the window screen with a pore size of 0.8\u2009mm (R0.8T2) and a thickness of 0.5\u2009mm proves to be the most beneficial, achieving the particle filtering efficiency of approximately 54.16%, while the larger window screen with a pore size of 2\u2009mm and a thickness of 1\u2009mm exhibits the lowest efficiency at about 23.85%. Nonetheless, screens with very small sizes are associated with a high-pressure drop, impacting energy efficiency, and overall window performance. Larger pores with smaller thicknesses (0.5\u2009mm) reduced particle count by approximately 45.97%. Therefore, the significance of window screen thickness beyond pore size for particle reduction efficiency is highlighted, emphasizing screens\u2019 role in indoor air quality and health protection.<\/jats:p>","DOI":"10.1177\/11786302241259352","type":"journal-article","created":{"date-parts":[[2024,6,11]],"date-time":"2024-06-11T00:47:32Z","timestamp":1718066852000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Numerical Analysis of Indoor Air Characteristics and Window Screen Influence on Particulate Matter Dispersion in a Childcare Center Using Computational Fluid Dynamics"],"prefix":"10.1177","volume":"18","author":[{"given":"Cathleen Ariella","family":"Simatupang","sequence":"first","affiliation":[{"name":"Graduate Program in Environmental and Water Resources Engineering, Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand"},{"name":"School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, NSW, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vladimir","family":"Strezov","sequence":"additional","affiliation":[{"name":"School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, NSW, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suwanna Kitpati","family":"Boontanon","sequence":"additional","affiliation":[{"name":"Graduate Program in Environmental and Water Resources Engineering, Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand"},{"name":"Graduate School of Global Environmental Studies, Kyoto University, Yoshida, Sakyo-Ku, Kyoto, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Prapat","family":"Pongkiatkul","sequence":"additional","affiliation":[{"name":"Department of Environmental Engineering, King Mongkut\u2019s University of Technology Thonburi, Bangkok, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Narin","family":"Boontanon","sequence":"additional","affiliation":[{"name":"Faculty of Environment and Resource Studies, Mahidol University, Nakhon Pathom, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ranjna","family":"Jindal","sequence":"additional","affiliation":[{"name":"Environmental Engineering and Management Program, Department of Energy, Environment and Climate Change, School of Environment and Resources Development, Asian Institute of Technology, Pathumthani, Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,6,10]]},"reference":[{"key":"bibr1-11786302241259352","doi-asserted-by":"publisher","DOI":"10.1016\/S0048-9697(98)00161-2"},{"key":"bibr2-11786302241259352","unstructured":"WHO. 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