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- W3150849960 abstract "The purpose of this study concerns the improvement of air quality in school classrooms. Polluted indoor air is improved by efficient ventilation systems. So it is important to measure the amount of ventilation needed in classrooms. First, the amount of natural ventilation were measured through a tracer gas method. And we have established a heat recovery ventilation system from 4 cases of airflow in classrooms, and we have measured the change of density. According to air quality measurements in the classrooms, the density of is well above environmental standards which are acceptable. When the amount of ventilated airflow increases, indoor air quality is improved. It is surveyed that the most suitable amount of external inducted air is 770 CMH to satisfy less than 1,000 ppm in classrooms. For improvement of air quality in classrooms, we must consider a suitable ventilation plan and installation of ventilation systems when constructing school buildings." @default.
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- W3150849960 date "2004-01-01" @default.
- W3150849960 modified "2023-09-24" @default.
- W3150849960 title "A Study on the using of the Ventilation System as the Method of Improvement of Air Quality in the Schools" @default.
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