CMAJ:湿热处理可让N95口罩循环利用10次,在杀死新冠病毒和细菌的同时不破坏口罩的功能

2020-08-03 EMILY LEE 细胞

在一项新的研究中,来自加拿大多伦多病童医院的研究人员发现对N95口罩进行湿热处理可以消除SARS-CoV-2和细菌,这将允许重新使用这些稀缺资源。

在一项新的研究中,来自加拿大多伦多病童医院的研究人员发现对N95口罩进行湿热处理可以消除SARS-CoV-2和细菌,这将允许重新使用这些稀缺资源。相关研究结果于2020年7月30日在线发表CMAJ期刊上,论文标题为“Effect of moist heat reprocessing of N95 respirators on SARS-CoV-2 inactivation and respirator function”。

这些研究人员发现湿热处理(60分钟,70℃,50%相对湿度)并没有破坏这种口罩的结构,也不影响它的功能。

论文通讯作者、多伦多病童医院的Gregory Borschel博士说,“这种低成本的再处理策略可以应用10次,而不会影响这种口罩的过滤性、呼吸阻力、贴合性和舒适性,因此可能有助于缓解COVID-19大流行期间的全球口罩短缺问题。”

这些研究人员在不同的温度和湿度水平下测试了4种常见型号的N95口罩,以确定是否能在经过处理的口罩上检测到病毒。他们还分析了口罩中纤维样品的结构完整性,并评估了热处理后口罩的功能。

Borschel博士说,“N95口罩的热消毒可能为资源较少的地区提供一种低成本、有效的方法来扩大这些关键资源的供应,从而保护脆弱的一线工人免受与工作相关的感染风险。”

原始出处:

Simeon C Daeschler, Niclas Manson, Kariym Joachim,et al.Effect of moist heat reprocessing of N95 respirators on SARS-CoV-2 inactivation and respirator function.CMAJ. 2020 Jul 30;cmaj.201203. doi: 10.1503/cmaj.201203.

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    2020-11-15 passed water
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    2020-12-05 yahu
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    2020-10-30 kcb069
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    2020-08-03 公卫新人

    新冠肺炎,疫情何时才能消失

    0

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