Operation method for the air purifier and ventilation systems of old school classrooms considering noise

Old schools with low airtightness performance are vulnerable to outdoor fine dust. Air purifier and ventilation systems typically used improve indoor air quality. However, due the noise that these generate, some classrooms do not operate mechanical facilities despite deterioration of This study aimed propose a operation method for appropriate improvement quality through CONTAMW simulation while minimizing students' disturbance from systems. By controlling volume in system, it is possible minimize this an old school effectively