A Case Study on the Improvement of Indoor Air Quality in Public Buildings Operated 24 Hours a Day through the Application of Integrated IAQ Management System : Focusing on Gangseo-gu Fire Department

Purpose: In public buildings that are open 24 hours a day, the impact of indoor air quality on the health of occupants is greater than in general public buildings that are used during the day. The purpose of this study is to evaluate the actual performance of an integrated indoor air quality management system developed to manage indoor air quality in buildings. Method: To this end, the integrated indoor air quality system was applied through remodeling to a fire station building that operates 24 hours a day, and the improvement effect was evaluated by measuring indoor air quality for 3 months before and after application. Result: As a result of the study, the waiting room (accommodation) on the second floor of the fire station building was automatically controlled after remodeling from March to June 2024, compared to the state where only natural ventilation was performed before remodeling from March to June 2023. As a result, the percentage of time when CO₂ and PM_2.5 concentrations exceed indoor air quality management standards improved by 17.3% for CO₂ and 1.1% for PM_2.5 . Before remodeling, the indoor PM_2.5concentration increased or decreased depending on the external PM_2.5 concentration, but after remodeling, it was found to be maintained at a constant level below the standard.