| Issue |
E3S Web Conf.
Volume 672, 2025
The 17th ROOMVENT Conference (ROOMVENT 2024)
|
|
|---|---|---|
| Article Number | 07031 | |
| Number of page(s) | 5 | |
| Section | Poster Articles: Ventilation & Energy Efficiency, Modelling & Measuring | |
| DOI | https://doi.org/10.1051/e3sconf/202567207031 | |
| Published online | 05 December 2025 | |
The effects of wind speed and wind angle on the PM2.5 removal efficiency using different protection window screens
1 Enviromental Research and Information Center, Chang Jung Christian University, Tainan, Taiwan
2 Department of Neurology and Occupational Medicine, Chi Mei Medical Center, Tainan, Taiwan
3 Sleep Medicine Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
4 Department of Computer Science and Information Engineering & Institute of Medical Informatics, National Cheng Kung University, Tainan, Taiwan
5 Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan, Taiwan
6 Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
Southern Taiwan is affected by monsoons during the winter and spring seasons resulting in high levels of PM2.5 exposure, further affects indoor air quality. Our study aims to investigate the effectiveness of different window orientations in actual residential settings for mitigating indoor PM2.5 levels by different types of protection window screen. Two buildings in southern Taiwan with windows facing different directions were selected and involving three types of protection window screens. The low-cost sensing (LCS) devices were used to monitor the indoor and outdoor PM2.5 levels. Opening windows with protection window screens could increase hour ratio of indoor PM2.5 lower than 15 μg/m3 in two residential and variations in PM2.5 clearance rates based on the orientation of windows with protection window screens. Additionally, the use of air purifier was found to further lower indoor PM2.5 concentrations. Subsequent analysis revealed that the influence of factors such as wind speed and wind angle can affect the effectiveness of protection window screens in reducing indoor PM2.5 levels. For windows facing different orientations in southern Taiwan, the wind angles and wind speeds generated by winter winds can influence the effectiveness of protection window screens in removing PM2.5 particles.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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