Costco 非医用KN95口罩测试合规格 优惠价15刀/20片

[森林之歌]

市面口罩多未达声称标准
测试发现一半不合规格
2021年4月5日 星岛日报
加拿大广播公司（CBC）节目Marketplace，
从本国大型零售店及网购平台亚马逊等，
随机採购了14个品牌的KN95及KF94口罩，每款购买了3个，
委託多伦多大学公共卫生学院进行测试，
检查这些产品是否符合声称的过滤效能，结果发现，有一半不合规格。

Costco MedSup Canada KN95 非医用口罩测试合格 ​

Non-medical, disposable KN95 face mask effective against dust, smoke, and microorganisms.



Costco 这款合格 MedSup KN95 属非医用口罩 Non Medical Use
俺打算囤一盒，日后戴上飞机够安全

The difference between medical and non-medical masks in KN95/ N95​

 

[森林之歌]

Is your N95-style mask failing you?​

Lab tests show some falling way short of filtration standards​

 

[森林之歌]

 

[森林之歌]

 

[dave]

市面口罩多未达声称标准
测试发现一半不合规格
2021年4月5日 星岛日报

加拿大广播公司（CBC）节目Marketplace，
从本国大型零售店及网购平台亚马逊等，
随机採购了14个品牌的KN95及KF94口罩，每款购买了3个，
委託多伦多大学公共卫生学院进行测试，
检查这些产品是否符合声称的过滤效能，结果发现，有一半不合规格。

注意：
如果包装上印有美国FDA的标志就要留意，这样做是违例的。
而包装上没有标示品牌及生产商的产品，最好不要购买了。

Costco KN95口罩测试合格 ​

浏览附件654223
浏览附件654224

普通人，尤其是55+的人，最好不要戴N95口罩。会对呼吸系统不利。

 

[森林之歌]

普通人，尤其是55+的人，最好不要戴N95口罩。会对呼吸系统不利。

胸闷气短？俺少出门，一路来用平片口罩

 

[dave]

胸闷气短？俺少出门，一路来用平片口罩

戴普通医用口罩就可以了。 你又不是在一线，老人院、护理院、医院直接接触患者。

 

[森林之歌]

戴普通医用口罩就可以了。 你又不是在一线，老人院、护理院、医院直接接触患者。

Costco 这款合格 MedSup KN95 属非医用口罩 Non Medical Use
俺打算囤一盒，日后戴上飞机够安全
Non-medical, disposable KN95 face mask effective against dust, smoke, and microorganisms.

 

[森林之歌]

The difference between medical and non-medical masks in KN95/ N95​

What is the difference between medical and non-medical masks in KN95 / N95 masks
The main difference is that the outer surface of medical type masks is treated with hydrophobic treatment. The medical surgical masks GB19083-2010 and YY0469-2011 clearly put forward the requirement of “synthetic blood penetration”, and the parameter index of “surface moisture resistance” clearly defines the medical protective mask Protective effect on blood and other fluids. In general, it is like water droplets will roll off on the lotus leaf. The liquid cannot penetrate on the surface of the mask, which can prevent medical staff from often touching alcohol and blood to prevent it from penetrating quickly; instead of medical type KN95 The / N95 mask does not undergo this special treatment.

The most protective function of KN95 and N95 protective masks is the filter layer. This filter layer uses polypropylene meltblown microfiber electret material. The outer surface of the mask has not been treated with hydrophobic treatment. Contact with water and alcohol during application will destroy the material. Structure, greatly reducing the filtering effect. What’s more, the blood often contains bacteria and viruses, and the application of the hospital determines that medical personnel are most likely to be exposed to the patient’s blood environment. Therefore, hydrophobic treatment on the surface of medical masks is essential. However, the probability of ordinary people encountering alcohol and blood is not high. As long as the masks are changed regularly, it will not hurt the outside without this treatment.

 

[dave]

The difference between medical and non-medical masks in KN95/ N95​

What is the difference between medical and non-medical masks in KN95 / N95 masks
The main difference is that the outer surface of medical type masks is treated with hydrophobic treatment. The medical surgical masks GB19083-2010 and YY0469-2011 clearly put forward the requirement of “synthetic blood penetration”, and the parameter index of “surface moisture resistance” clearly defines the medical protective mask Protective effect on blood and other fluids. In general, it is like water droplets will roll off on the lotus leaf. The liquid cannot penetrate on the surface of the mask, which can prevent medical staff from often touching alcohol and blood to prevent it from penetrating quickly; instead of medical type KN95 The / N95 mask does not undergo this special treatment.

The most protective function of KN95 and N95 protective masks is the filter layer. This filter layer uses polypropylene meltblown microfiber electret material. The outer surface of the mask has not been treated with hydrophobic treatment. Contact with water and alcohol during application will destroy the material. Structure, greatly reducing the filtering effect. What’s more, the blood often contains bacteria and viruses, and the application of the hospital determines that medical personnel are most likely to be exposed to the patient’s blood environment. Therefore, hydrophobic treatment on the surface of medical masks is essential. However, the probability of ordinary people encountering alcohol and blood is not high. As long as the masks are changed regularly, it will not hurt the outside without this treatment.

学习了，谢谢森林分享！你买非医用N95口罩足够了。明年3月份以后，疫情基本就趋于解除了。 只是那时不知中国是否对外国人开放签证，而明年是我的本命年，是一大关。 所以，基本不抱明年回国想法了， 先过关吧！

 

[森林之歌]

学习了，谢谢森林分享！你买非医用N95口罩足够了。明年3月份以后，疫情基本就趋于解除了。 只是那时不知中国是否对外国人开放签证，而明年是我的本命年，是一大关。 所以，基本不抱明年回国想法了， 先过关吧！

俺周围很多长者，渡过很多本命年，沒事的！

 

[sherryshi]

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