| Title |
Analysis of Spatial Structure, Pressure Difference, Airflow Rates and Door Leakage Areas in Airborne Infection Isolation Rooms |
| Authors |
김기훈(Kim, Gi-Hoon) ; 조성민(Jo, Seong-Min) ; 성민기(Sung, Minki) |
| DOI |
https://doi.org/10.5659/JAIK.2024.40.8.183 |
| Keywords |
Airborne Infection Isolation room; Spatial structure; Pressure difference; Airflow rates; Door leakage areas |
| Abstract |
In response to significant public health threats from novel respiratory infectious diseases like SARS, MERS, and COVID-19, including the SARS-CoV-2 Omicron variant, the Korea Disease Control and Prevention Agency (KDCA) has established Air Infection Isolation Rooms (AIIR). These rooms are crucial for containing infections and follow specific design and operational guidelines. Despite standardized guidelines, variations in room structure and HVAC systems lead to differences in airflow and pressure conditions. This study analyzes the structural and operational characteristics of AIIRs in Korea, comparing CDC and ASHRAE guideline formulas for calculating leakage areas. Findings indicated that while most facilities meet minimum ventilation requirements, some exceeded recommended rates, causing energy inefficiencies. Discrepancies between CDC and ASHRAE guidelines resulted in varied leakage areas in AIIRs. Insufficient leakage areas can increase air leakage during medical staff entry and exit, while overly large leakage areas can lead to energy waste. Therefore, establishing standards for appropriate leakage areas and airflow differences in AIIRs is necessary. |