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再加工的"嘴"型N95口罩的适合性测试失败
Phillip Moschella1, Wesley Liao1, Alain H Litwin1
1From the University of South Carolina School of Medicine, Greenville.
Southern medical journal
|October 4, 2024
概括
用蒸发过氧化灭菌后N95口罩的重复使用显示了可变的适合性测试结果. 由于表现不一致,口罩回收计划丢弃了这些口罩,突出了需要对个体卫生系统进行评估的需要.
科学领域:
- 医疗保健准备情况 医疗保健准备情况
- 传染病控制中的传染病控制
- 职业安全 职业安全 职业安全
背景情况:
- 在COVID-19大流行期间,全球N95口罩短缺使得需要面具重复使用策略.
- 美国疾病控制和预防中心 (CDC) 建议再处理方法,包括蒸发过氧化,N95口罩重复使用最多5次.
研究的目的:
- 为了评估N95口罩在经过多次杀菌和穿戴/脱落周期后的适应性能.
- 为了评估蒸发过氧化灭菌和重复使用所造成的适合性性能下降.
主要方法:
- N95口罩 (新的和消毒的) 经过5或10个周期的35%蒸发过氧化.
- 面具经历了五次穿戴和脱落的试验.
- 美国国家职业安全与健康研究所 (NIOSH) 的定量适应性测试是在每个佩戴周期后对单个志愿者进行的.
主要成果:
- 在两个回收面具队伍中,在面具通过适合性测试的百分比中观察到显著差异.
- 数据显示,NIOSH适应测试结果对新型N95口罩和消毒N95口罩的变化.
结论:
- 消毒N95口罩的可变失效率导致它们被卫生系统回收计划丢弃.
- 卫生系统必须进行个别评估,以制定有关N95口罩再利用和回收的明智政策.
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Step 1: Perform hand hygiene, and put on personal protective equipment: gown, gloves, mask...
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