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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
  2. [GetPortalCommentsPageByObjectIdResponse(id=1689242, encodeId=147a168924200, content=<a href='/topic/show?id=3ef2124641b' target=_blank style='color:#2F92EE;'>#N95#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=104, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12464, encryptionId=3ef2124641b, topicName=N95)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=845728772410, createdName=passed water, createdTime=Sun Nov 15 07:11:35 CST 2020, time=2020-11-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2070791, encodeId=d11120e07916a, content=<a href='/topic/show?id=a8d26e187c0' target=_blank style='color:#2F92EE;'>#热处理#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67187, encryptionId=a8d26e187c0, topicName=热处理)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=52c7237, createdName=yahu, createdTime=Sat Dec 05 21:11:35 CST 2020, time=2020-12-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1887297, encodeId=c8bd188e297a0, content=<a href='/topic/show?id=dc6712465f4' target=_blank style='color:#2F92EE;'>#N95口罩#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=122, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12465, encryptionId=dc6712465f4, topicName=N95口罩)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=87b1109, createdName=kcb069, createdTime=Fri Oct 30 11:11:35 CST 2020, time=2020-10-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1307867, encodeId=5d71130e86765, content=<a href='/topic/show?id=2be638263f4' target=_blank style='color:#2F92EE;'>#口罩#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=38263, encryptionId=2be638263f4, topicName=口罩)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7f52347, createdName=soongzhihua, createdTime=Wed Aug 05 08:11:35 CST 2020, time=2020-08-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1028379, encodeId=d6e510283e9e8, content=新冠肺炎,疫情何时才能消失, beContent=null, objectType=article, channel=null, level=null, likeNumber=119, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=公卫新人, createdTime=Mon Aug 03 20:11:35 CST 2020, time=2020-08-03, status=1, ipAttribution=)]
    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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