PM2.5 mask refers to the mask that can effectively filter PM2.5 particles. The airtightness of the mask determines the ability of filtering suspended particles. It is suitable for the environment with poor air quality. The basic structure of PM2.5 mask is that the outer layer is an antibacterial fabric, and the material is carbon fiber felt pad, polymer fabric, non-woven fabric, etc.
PM2.5 口罩是指能有效过滤 PM2.5 微粒的口罩，口罩的密闭性决定了滤过悬浮颗粒分子能力。能够有效过滤空气中的隐形杀手——雾霾、病毒、细菌、尘螨、花粉等微小颗粒。适用于空气质量较差的环境。PM2.5 口罩的基本结构是外层为一个抗菌的面料，材质为碳纤维毡垫、高分子织物、无纺布等。
PM2.5 mask refers to the mask that can effectively filter PM2.5 particles. The airtightness of the mask determines the ability of filtering suspended particles. It can effectively filter the invisible killer in the air – haze, virus, bacteria, dust mite, pollen and other small particles. It is suitable for the environment with poor air quality. The basic structure of PM2.5 mask is that the outer layer is an antibacterial fabric, and the material is carbon fiber felt pad, polymer fabric, non-woven fabric, etc.
PM2.5 口罩的基本结构是外层为一个抗菌的面料，材质为碳纤维毡垫、高分子织物、无纺布等。中间层是保暖的填充物，最下面一层是 PM2.5 的滤片，滤片中间加入了无粉尘颗粒活性炭，滤片经过纳米银杀菌剂的处理，滤性在 95%到 99%左右。PM2.5 口罩的主要材料是使用无纺布、过滤纸等，并且最主要的是使用铅炭布，能够起到较好的防毒功能。PM2.5 口罩一般属于一次性口罩，尽量不要使用两次及以上。
The basic structure of PM2.5 mask is that the outer layer is an antibacterial fabric, and the material is carbon fiber felt pad, polymer fabric, non-woven fabric, etc. The middle layer is a warm filler, and the bottom layer is a PM2.5 filter. Dust free granular activated carbon is added in the middle of the filter. After being treated with nano silver bactericide, the filter has a filterability of about 95% to 99%. The main materials of PM2.5 mask are non-woven fabric, filter paper, etc., and the most important is lead carbon cloth, which can play a better anti-virus function. PM2.5 masks are generally disposable masks. Try not to use them twice or more.
PM2.5 The mask can deeply filter and block the haze, effectively filter the invisible killer in the air – bacterial virus, automobile exhaust, second-hand smoke, formaldehyde, dust mite, haze, volatile chemicals, air pollution gas, block the use of droplets, body fluids and secretions, because of the impact of inhalable particles brought by automobile exhaust, absorb and filter the pollution gas, etc., widely used in medical and health care Industry, public places. No matter in filtration efficiency, air permeability, antibacterial, safety and other aspects, it is far superior to ordinary masks.
PM2.5 口罩增加很多防范，因此比传统的口罩功能更多。比如其铅炭布可以起到（防毒的功能）、过滤纸能够阻挡百分之 95 以上的微尘吸入身体内，属于较好类型的口罩。有一部分工业地区也使用此口罩防毒，因为工业地区里面可能存在一定的化学物质或有毒气体，而 PM2.5 口罩的铅炭布拥有防毒功能。
PM2.5 mask has a lot of prevention, so it has more functions than traditional mask. For example, its lead carbon cloth can play a role (anti-virus function), filter paper can prevent more than 95% of the dust inhalation into the body, which belongs to a better type of mask. Some industrial areas also use this respirator for anti-virus, because there may be certain chemicals or toxic gases in the industrial areas, and the lead carbon cloth of PM2.5 respirator has anti-virus function.
PM2.5 口罩采用了空气过滤材料技术，0.25 微米的级别，可以防范病毒侵入。口罩滤片中间还加入了无粉尘颗粒活性炭，由于传统活性炭纤维口罩是在过滤纤维上抹上一层炭粉，纤维布内有一部分细微炭粉颗粒物，对于患有肺部疾病的使用者有一定的影响。而经过精致处理过的颗粒活性炭不仅能深度净化粉尘，还可以吸附有毒气体，进一步提高口罩的安全性。
PM2.5 mask adopts air filter material technology, 0.25 micron level, which can prevent virus invasion. Dust free granular activated carbon is also added in the middle of the filter plate of the mask. Because the traditional activated carbon fiber mask is to smear a layer of carbon powder on the filter fiber, there are some fine carbon powder particles in the fiber cloth, which has a certain impact on users with lung diseases. The finely treated granular activated carbon can not only deeply purify dust, but also absorb toxic gas, further improving the safety of mask.
最普通的纱布口罩防护空气中的颗粒物效果最差，普通的纱布口罩就是纤维口罩，它的阻流原理就是一个机械阻挡作用，通过这一层一层的机械阻挡，可以把大的颗粒阻挡住，但是直径小于 5 微米的颗粒物阻挡不住。
The most common gauze mask has the worst effect of protecting particles in the air. The common gauze mask is fiber mask. Its flow blocking principle is a mechanical blocking effect. Through this layer of mechanical blocking, large particles can be blocked, but particles with a diameter less than 5 micrometres cannot be blocked.
医用外科口罩和医用一次性口罩可以阻挡直径大于 4 微米的颗粒，在医院环境下的口罩密闭性实验室进行的测验结果表明，按照一般的医学标准，对于 0.3 微米的颗粒物，医用外科口罩透过率为 18.3%，普通一次性医用口罩为 85.6%，表明医用口罩对细小的颗粒物阻挡效果有限。
Medical surgical masks and disposable masks can block particles with a diameter greater than 4 microns. According to the general medical standards, for particles with a diameter of 0.3 microns, the transmissivity of medical surgical masks is 18.3%, and that of ordinary disposable masks is 18.3% 85.6%, indicating that the medical mask has limited effect on small particles.
医用 N95 口罩对 0.3 微米的粒子进行检测，大的粒子都能被阻流住，而在口罩密闭性实验室中检测时，医用 N95 口罩的透过率只有 0.425%，可以说 99%多的颗粒物都被阻挡住。
When the N95 mask is used to detect the particles of 0.3 μ m, the large particles can be blocked. When the mask is tested in the airtight laboratory, the transmittance of the N95 mask is only 0.425%. It can be said that more than 99% of the particles are blocked.