With the emergence of mobile nucleic acid testing booths during the COVID-19 pandemic, we have developed an efficient, stable, and safe ventilation system to meet their air quality and safety needs. Our system features advanced technology with high-quality fans, ducts, and filters, ensuring optimal airflow and filtration to maintain fresh and healthy indoor environments. Equipped with intelligent controls, it adjusts airflow automatically for peak efficiency while minimizing energy consumption. This system not only supports COVID-19 prevention efforts but also enhances indoor air quality in various enclosed spaces, promoting health and safety for residents and workers alike.