评估和分析小型检查室内便携高效空气过滤设备的功效。
Evaluating and contextualizing the efficacy of portable HEPA filtration units in small exam rooms.
机构信息
Department of Infection Prevention and Control, Northeast Georgia Health System, Gainesville, GA.
Department of Infection Prevention and Control, Northeast Georgia Health System, Gainesville, GA.
出版信息
Am J Infect Control. 2021 Dec;49(12):1506-1510. doi: 10.1016/j.ajic.2021.08.003. Epub 2021 Aug 12.
BACKGROUND
Ambulatory clinics attend to COVID-19 patients, often in spaces with less than ideal ventilation. Testing and treatments can often include aerosol-generating procedures. Portable high efficiency particulate air (HEPA) filtration units have been used to remove airborne contaminants in these areas.
METHODS
A particle counter was used to evaluate the effectiveness of portable HEPA filtration units when a proxy airborne contaminant (powder) was actuated into the air. The Center for Disease Control and Prevention's (CDC) Airborne Contaminant Removal table served as a basis for initial particle readings at 6 minutes.
RESULTS
Percent decrease was calculated post powder actuation at the 6-minute and 12-minute mark. There was a statistically significant decrease in smaller particles at the 6-minute and 12-minute mark when the HEPA filtration units were used.
CONCLUSION
As an adjunct infection control intervention, portable HEPA filtration units can make outpatient exam rooms safer for patients and staff by decreasing cumulative airborne particles.
背景
流动诊所为 COVID-19 患者提供服务，这些诊所的通风条件往往不理想。检测和治疗通常包括产生气溶胶的程序。便携式高效空气过滤器 (HEPA) 已被用于去除这些区域中的空气传播污染物。
方法
当代理空气污染物（粉末）被激活到空气中时，使用粒子计数器评估便携式 HEPA 过滤单元的效果。疾病控制与预防中心 (CDC) 的空气污染物去除表作为初始粒子读数的基础，在 6 分钟时读取。
结果
在粉末激活后 6 分钟和 12 分钟时计算百分比减少。当使用 HEPA 过滤单元时，在 6 分钟和 12 分钟标记时，较小颗粒的数量有统计学意义的减少。
结论
作为辅助感染控制干预措施，便携式 HEPA 过滤单元可以通过减少累积的空气传播颗粒，使门诊检查室对患者和工作人员更安全。
Zotero 插件