Field Study of Ventilation Planning in Multi-Use Facilities for the Post-COVID-19 Pandemic Era : Focusing on Facility Usage Conditions and Ventilation Performance

Purpose : This study aims to improve the ventilation performance of multi-use facilities based on a field study for the preparedness in the post-COVID-19 era, which can assist the advances on ventilation systems against airborne infectious diseases. Method : To analyze the potential weakness of airborne infections in multi-use facilities, a field study was conducted in 20 locations (i.e., 2 cafes, 9 restaurants, 3 indoor sports facilities, 2 PC cafes, and 1 supermarket) in Busan, Korea. The physical conditions, usage profiles and behaviors, architectural design, HVAC system, and ventilation planning standards were analyzed. Based on this, recommendations for ventilation planning were proposed for multi-use facilities during the post-pandemic era. Result : In this study, a field study diagnosed the ventilation planning of multi-use facilities and reviewed the obstacles and developed future directions to prepare for the air contaminant outbreaks. The results showed that In existing multi-use facilities, it is required to improve ventilation performance based on a multifaceted investigation considering the nature of the facility. The results will contribute to building preparedness for the next pandemic in multi-use facilities.