疫情中的通風科技與遏止COVID-19空氣傳播

Ventilation Technology in the Pandemic and Prevention of COVID-19 Airborne Transmission

在COVID-19疫情中，通風換氣系統對於減少病毒傳播風險至關重要。本文探討自然通風與機械通風的優缺點，強調良好通風可降低空氣中的病毒氣膠濃度，有效控制傳染。自然通風雖然不需額外成本，但易受環境影響，換氣量不穩定；而機械通風則能穩定維持室內空氣品質，特別是安裝排氣扇或全熱交換器，可有效改善換氣量。二氧化碳濃度監測可作為通風效能的替代指標，協助評估室內空氣品質。此外，若無法達到最低換氣量，可輔以空氣清淨機等設備補足換氣不足。整體而言，優化通風換氣，應是多層次防疫策略中的重點，兼顧健康與防疫需求。

During the COVID-19 pandemic, ventilation systems played a crucial role in reducing the risk of virus transmission. This article explores the advantages and disadvantages of natural and mechanical ventilation, emphasizing that effective ventilation can lower the concentration of viral aerosols in the air, thereby effectively controlling the spread of infection. Natural ventilation, while cost-free, is affected by environmental factors, making airflow inconsistent. In contrast, mechanical ventilation can consistently maintain indoor air quality, especially through the installation of exhaust fans or energy recovery ventilators to improve ventilation volume. Monitoring carbon dioxide (CO2) levels serves as an alternative indicator of ventilation efficiency, aiding in assessing indoor air quality. Moreover, if the minimum ventilation volume cannot be achieved, air purifiers can be used to supplement insufficient ventilation. Overall, optimizing ventilation should be a key aspect of a multilevel pandemic prevention strategy, balancing health and epidemic prevention needs.