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由于武汉新冠病毒盛行，现在口罩变得一罩难求，9393体育智能手艺中心查阅了口罩相关的专业知识，对口罩的性能、使用、接纳等方面做一些汇总先容，望能给各人提供一些作用能更好的�；ぷ约杭凹胰�。
Due to the prevalence of Wuhan novel coronavirus, masks have become more and more difficult to find. Liangshi IntelRobot technology center has consulted the relevant professional knowledge of masks, and made some brief introduction on the performance, use, recycling and other aspects of masks, with the hope to provide you with some functions to better protect yourself and your family.
现在市面上流通的口罩有面纱口罩、海绵口罩、活性炭口罩、医用口罩和专业防护口罩等等，据专家先容，现在只有专业防护口罩中的N95口罩及医用外科口罩才华对阻断武汉新冠病毒有用。
At present, masks on the market include gauze masks, pitta masks, activated charcoal masks, medical surgical masks and professional protective masks. According to experts, only N95 respirators and medical surgical masks in professional protective masks can effectively block Wuhan novel coronavirus.
海绵口罩pitta mask
活性炭口罩Activated charcoal mask
医用外科口罩medical surgical mask
专业防护口罩professional protective mask
口罩阻断病毒撒播的机理主要是“过滤”！并不是口罩上有什么化学物质能杀死病毒，因此对武汉新冠病毒是否有用就要从口罩的过滤效率来剖析判断。
The mechanism of mask blocking virus transmission is mainly "filtering"! It's not that there are any chemicals on the mask that can kill the virus. Hence whether it is effective against the novel coronavirus in Wuhan can only depends on the filter efficiency of the mask.
武汉新型冠状病毒主要通过呼吸道撒播，撒播方法为飞沫撒播、飞沫核撒播及灰尘撒播。新冠病毒平均直径为100纳米，即0.1微米。但病毒颗粒不可个体生涯，必需依附在前言上，好比飞沫、飞沫核、灰尘等，不管是何种前言，其颗粒巨细都是病毒的数倍，好比飞沫及飞沫核的直径＞5微米。
The novel coronavirus in Wuhan is mainly transmitted through the respiratory tract, which is spread by droplets, droplet core and dust. The average diameter of the novel coronavirus is 100 nm, or 0.1 μ M. However, virus particles can not survive alone, and must be attached to a certain media, such as droplets, droplets core, dust, etc. No matter what media, the particle size is several times that of the virus, such as droplets and droplets core with a diameter of more than 5 microns.
海绵口罩 Pitta mask
凭证PITTAMASK海绵口罩说明文件，其对花粉的过滤效率为99%，而花粉的粒径为20-50微米，显然这种口罩是不可有用阻断病毒的。这种口罩形状雅观、透气性好、可以洗涤，适用一样平常居家旅行，不适合目今提防武汉新冠病毒。
According to the description of pitta mask, its filtering efficiency for pollen is 99%, and the particle size of pollen is 20-50 μm, which obviously, this mask can not effectively block the virus. This kind of mask has beautiful appearance, good air permeability and can be washed. It is suitable for daily home travel but not appropriate for the current prevention of Wuhan novel coronavirus.
活性炭口罩
Activated charcoal mask
活性炭口罩就是在通俗的防尘口中，夹了一层活性炭。这种口罩除了通俗的除尘功效外，还具备了对有机物吸附的功效。适合在有机物污染的情形下佩带使用，好比新装修睦的屋子里、喷漆作业情形等。
Activated charcoal mask is to sandwich a layer of activated charcoal in the ordinary dust-proof mask. In addition to the ordinary dust proof function, the mask also has the function of adsorbing organic matters. It is suitable for wearing in the environment that is polluted by organic matters, such as newly decorated house, painting environment, etc.
活性炭对气溶胶状态的飞沫核也具有很好的吸附效果，其过滤效果要比通俗防尘口罩要好的多，能提防5微米以下颗粒。虽然专家没有推荐这款口罩，可是若是着实买不到专用口罩，活性炭口罩也是具有一定效果的。
活性炭口罩一样平常为灰色或玄色，但颜色不是判断活性炭口罩的唯一标准，市场上有些玄色的口罩冒充活性炭口罩，其中心是没有活性炭质料的，可以剖解口罩来判别。
Activated charcoal also has a good adsorption effect on aerosol droplets. Its filtering effect is much better than that of ordinary dust proof masks, and it can prevent particles below 5 microns. Although experts didn't recommend this mask, if you can't buy an exclusive mask, the activated charcoal mask also has a certain effect. Activated charcoal masks are generally gray or black, but the color is not the only standard to judge activated charcoal masks. Some black masks in the market pretend to be activated charcoal masks, but among which there is no activated charcoal material, so we can dissect the masks to judge.
医用口罩 Medical mask
标准的医用口罩由三层以上组成，外层是为阻水层、中心为过滤层、内层为吸湿层。
The standard medical mask is composed of more than three layers, the outer layer is water blocking layer, the middle layer is filter layer, and the inner layer is hygroscopic layer.
外科级的医用口罩关于0.3微米的颗粒物透过率为18.3%，若是医患两者都配佩带医用外科口罩的话，其过滤效率翻倍，对0.3微米颗粒过滤效率抵达97%，可以抵达专业防护口罩N95级别。因此，专家建议是准确的。
The penetration rate of surgical grade medical masks for 0.3 μ m particles is 18.3%. If both doctors and patients wear medical surgical masks, the filtration efficiency will double, and the filtration efficiency for 0.3 μm particles will reach 97%, which can reach the N95 level of professional protective masks. Therefore, the expert advice is reasonable.
现在市售的医用口罩鱼龙混杂，质量狼籍不齐。据我视察，有些所谓的医用口罩其第二层和第三层都是同种质料，孔径也较量大，关于是否能有用阻挡病毒值得嫌疑。选购口罩，应首选有“LA”防护标记及“QS”生产允许标记的产品。
At present, the medical masks sold in the market are mixed with lots of poor quality ones. According to my observation, the second and third layers of some so-called medical masks are of the same material, and the aperture is relatively large, so it is questionable whether they can effectively intercept the virus. The products with "LA" protection mark and "QS" production license mark shall be the prefered choice when purchasing masks.
专业防护口罩
professional protective mask
所谓的N95口罩，是对＞0.3微米以上的颗粒过滤效率抵达95%以上。前缀“N”是体现防护特征，不耐油的意思。后缀的数字是过滤效率。因此，不管是N95、KN95、P95、N100、P100，都是可以有用阻断病毒的。
The genuine N95 respirators can filter more than 95% of particles larger than 0.3 μ M. The prefix "N" means its protective property and not oil resistant. The number of suffixes is its filter efficiency. Therefore, no matter N95, KN95, P95, N100 or P100, they can effectively block the virus.
现在，市面上N95很是希罕，一罩难求，在这种情形下我以为可以退而求次，若是有N90的口罩，也是可以有用阻断病毒，但条件是在人群群集的公共场合下，每小我私家都必需佩带口罩。若是两小我私家都佩带N95口罩的话，其对冠状病毒的阻挡效率可抵达99%以上，是十分清静的。
At present, N95 is very rare on the market, even one mask is hard to find. In this case, I think we can take the second best. If there is N90 respirator, it can also effectively block the virus, but on premise that everyone must wear the mask in public places where people gather. If two people wear N95 respirators, the interception efficiency of coronavirus can reach more than 99%, which is very safe.
专业防护口罩由于滤层厚，滤孔小，因此透气性不佳，因此这种口罩的形状是突出的，以增添过滤面积，使透气性获得包管。
Due to the thick filter layer and small filter holes, the air permeability of the professional protective mask is poor. Therefore, the shape of the mask is outstanding to increase the filtering area and ensure the air permeability.
带呼吸阀的防护口罩
professional protective mask with breathing valve
尚有一种带呼吸阀型的专业防护口罩，这种口罩吸气时空气透过滤层，呼气时气体通过呼吸阀，以增添佩带恬静性。但正由于这种特点，这种口罩只能�；ぷ约�，而不可�；に�。若是是患者或疑似病例，万万不可佩带这种带呼吸阀的口罩，会把病毒撒播别人。
There is also a kind of professional protective mask with a breathing valve. When inhale with the mask , the air passes through the filter layer, and when exhale, the air passes through the breathing valve, so as to increase the wearing comfort. But because of this characteristic, this kind of mask can only protect himself, not others. If he is a infected patient or suspected case, never wear this mask with a breathing valve, it will spread the virus to others.
带呼吸器的口罩 professional protective mask with breathing valve
口罩的接纳使用
recycle of mask
口罩是低价值的消耗商品，一样平常一次性使用。但现在武汉新冠盛行的很是时期里，我们要变废为宝，重复使用口罩，以缓解市场供求压力。
Masks are low value consumable goods and are generally disposable. But now in the very period when Wuhan novel coronavirus is epidemic, we need to turn waste into treasure and reuse masks to relieve the pressure of market supply and demand.
据专家先容，武汉新冠病毒怕热、怕化学消毒品，在体外生涯能力低，针对这些特征，我想了几个简朴的口罩再使用步伐与各人分享：
According to experts, Wuhan novel coronavirus is afraid of heat and chemical disinfectants, and its vitro viability is low. In view of these characteristics, I'd like to share with you several simple ways to reuse masks:
高温消毒再生法
High temperature disinfection regeneration method
关于武汉新型冠状病毒在56℃温度下30分钟即被灭活这个特征，将使用过的口罩安排在取暖和器上烘烤30分钟以上，取暖和器温度高于56℃，但又不至于太烫把口罩给烤糊了。
The novel coronavirus can be inactivated at 30 minutes at 56 degrees centigrade. So the mask can be placed on the heater for over 30 minutes. The heater temperature was higher than 56 degrees, but it should not be too hot to bake it.
虽然也可以把水烧开后，用欢喜爆发的蒸汽烫一下，蒸汽温度抵达100℃，因此可以缩短再生时间，一两分钟即可。蒸汽再生操作时要特殊小心，最好用镊子夹持，以免烫伤。
Of course, you can also boil the water and scald it with the steam generated by boiling. The steam temperature reaches 100 ℃, so the regeneration time can be shortened, just a minute or two. Special care shall be taken during steam regeneration operation. It is better to clamp with tweezers to avoid scalding.
口罩切勿用吹风机高温再生，以免把阻挡吸附的病毒重新吹出来�？谡忠膊豢芍苯佑没鹂�，口罩一样平常都是用聚丙烯熔喷无纺质料制成，不耐明火及高温。
Do not use a blower to regenerate the mask at high temperature, so as not to blow the intercepted virus out again. Masks can not be directly baked with fire, as masks are generally made of polypropylene melt blown with non-woven materials, which are not resistant to open fire and high temperature.
暴晒再生法
Direct-sun exposure regeneration method
关于病毒在体外干燥情形下不可长时间生涯的特征，只要将使用过的口罩置于太阳底下暴晒2个小时以上，加上紫外线的作用，是可以杀灭病毒的。
In view of its characteristics that the virus can not survive for a long time in dry environment in vitro, as long as the used mask is exposed to the sun for more than 2 hours, plus the effect of ultraviolet, it can kill the virus.
化学消毒再生法
Chemical disinfection regeneration method
关于病毒对酒精和消毒剂敏感的特征，在使用过的口罩上喷洒75%浓度以上医用酒精或含氯的消毒剂，然后晾干至无味，也是行之有用的。
As the virus is sensitive to alcohol and disinfectants, it is also effective to spray 75% medical alcohol or disinfectant containing chlorine on the used mask, and then dry it to tasteless.
自己不推荐用水洗濯口罩，揉搓洗濯口罩会使过滤质料滤孔变形，过滤效率降低。另外，通俗洗涤液暂未证实对病毒可以有用灭活。
I do not recommend cleaning the mask with water. Rubbing and cleaning the mask will deform the filtering hole of the filter material and reduce the filtering efficiency. In addition, the ordinary detergent is not proved that it can effectively inactivate the virus.
口罩再生是现阶段无奈之举，有条件的话照旧需要勤换口罩。关于在高危场合使用过的口罩照旧不建议重复使用。
Mask regeneration is a helpless move at this stage. If conditions permit, it is still necessary to change masks frequently. It is not recommended to reuse the masks that have been used in high-risk places.
最后提醒各人，放弃的口罩一定要装入垃圾带，不可随意扬弃，以免贻害别人。
Finally, I remind you that the discarded masks must be put into the garbage bag, and can not be discarded at will, so as not to harm others.
口罩的佩带要领 Wearing methods of mask
N95口罩佩带要领
Wearing methods of N95 mask:
医用外科口罩佩带要领
Wearing methods of medical surgical masks
本文知识纯属普及及推广，仅供参考，9393体育不负任何执法责任。
The knowledge in this article is only for reference, and Liangshi will not bear any legal responsibility.
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