School of Chemistry and Environmental Research Institute, University College Cork, Cork, Ireland; Department of Pathology, University College Cork, Cork, Ireland; School of Chemical and Pharmaceutical Sciences, Technological University Dublin, Dublin, Ireland.
School of Chemistry and Environmental Research Institute, University College Cork, Cork, Ireland.
J Hosp Infect. 2023 Jan;131:54-57. doi: 10.1016/j.jhin.2022.09.017. Epub 2022 Oct 2.
As the severe acute respiratory syndrome coronavirus-2 pandemic has proceeded, ventilation has been recognized increasingly as an important tool in infection control. Many hospitals in Ireland and the UK do not have mechanical ventilation and depend on natural ventilation. The effectiveness of natural ventilation varies with atmospheric conditions and building design. In a challenge test of a legacy design ward, this study showed that portable air filtration significantly increased the clearance of pollutant aerosols of respirable size compared with natural ventilation, and reduced spatial variation in particle persistence. A combination of natural ventilation and portable air filtration is significantly more effective for particle clearance than either intervention alone.
随着严重急性呼吸综合征冠状病毒 2 型大流行的进展，通风越来越被认为是感染控制的重要工具。爱尔兰和英国的许多医院没有机械通风，而是依赖自然通风。自然通风的效果因大气条件和建筑设计而异。在对传统设计病房的挑战测试中，本研究表明，与自然通风相比，便携式空气过滤显著增加了可吸入尺寸的污染物气溶胶的清除率，并减少了颗粒物持续存在的空间变化。自然通风和便携式空气过滤的组合在颗粒物清除方面比任何单一干预措施都更有效。
