Can GB19083 2010 be anti haze

Smog is particulate matter that is less than a micron in diameter, and although it looks like fog, it is solid.

Causes of haze:

Coal straw burning, which is also a reason why the northern winter is prone to haze.

Vehicle exhaust emissions.

Industrial exhaust emissions, the main smog in London that year**.

All kinds of dust in life, dust and water vapor combined to float in the air will form haze.

Hazards of smog:

1.It is harmful to the respiratory system, easy to cause acute rhinitis, bronchitis, and may cause lung cancer in severe cases.

2.It causes cardiovascular and cerebrovascular diseases, leading to cardiovascular disease, hypertension, coronary heart disease, cerebral hemorrhage, may induce angina, myocardial infarction, heart failure, etc., and causes chronic bronchitis to cause cor pulmonale.

3.Affects male fertility.

Prevention and control of smog: The overall management depends on the state, but we must also have a sense of prevention.

1.Exercise time and intensity are appropriately reduced outdoors.

2.When you go out to wear a mask, it is recommended to buy a lot of masks at a time, and cut one after two or three days to see the condition of the filter element, so as to judge the use cycle and effect of each mask.

3.Protect your lungs, eat more foods that nourish your lungs, and drink plenty of water.

4.Indoor air purification: the effect of the air purifier is not very good, it is best to install a set of Haoting household ductless fresh air system in your own house, the PM value of the air outlet can reach 0, and the PM value in the whole room is also between 7-15, the effect is very good.

KN95 GB19083-2010 Technical requirements for medical protective masks.

This standard specifies the technical requirements, test methods, marks and instructions for use, packaging, transportation and storage of medical protective masks.

This standard is applicable to self-priming filtering medical protective masks that filter particulate matter in the air and block droplets, blood, body fluids, secretions, etc. in a medical working environment.

According to GB19083-2010, medical protective masks have three levels of filtration efficiency, namely % and %, all of which are only suitable for non-oily particulate matter, which is in line with the characteristics of particulate matter protected by the hospital environment without oily substances.

There is no national standard for anti-haze masks, but the formulation of the national standard for "Technical Specifications for Daily Protective Masks" was launched in September. There will be national standards for daily protective masks, which will change the status quo of mixed and inferior quality of various types of "anti-haze" masks. It is believed that relevant standards will be introduced in the next few years.

The first new standard is to distinguish between daily and industrial anti-haze masks in accordance with international practice; Second, according to China's national conditions, haze (PM2 5) protection will be included in the new norms.

The national standard used now is GB2626-2006 respiratory protection equipment - self-priming filtering anti-particulate respirator.

The current standard does not apply to civilian anti-smog (PM2 5) mask products. Due to the lack of unified standards and specifications, enterprise production and testing institutions all choose their own standards, which not only causes some products to actually fail to achieve the daily protective effect, but also makes the industrial protective masks that are not conducive to daily use abused.

First of all, we must recognize the concept of the word "haze", which is a combination of fog and haze, and the harm is far greater than the harm of fog and haze to the human body. The main "members" of smog are sulfur dioxide, nitrogen oxides, and dust particulate matter, the former two are gaseous, and the latter are small solid particles. Generally, the concentration of haze outdoors is relatively high, and it mainly includes two kinds of non-oily particulate matter and oily particulate matter, of which non-oily particulate matter mainly refers to dust, coal dust, ash, etc.; Oily particulate matter refers to the exhaust smoke, oil mist, diesel engine exhaust, etc. emitted by automobiles.

What is an anti-smog mask? Anti-smog masks must be both oil-resistant and non-oily particles.

Furthermore, the concept of medical masks is: medical masks are mainly used in the medical industry, generally in infirmaries, hospital wards and operating rooms. Medical masks can only effectively prevent non-oily particles in the environment from being inhaled by the human body, cannot isolate oily particles such as oil smoke, and cannot effectively protect gaseous compound particles.

In addition, as mentioned in the domestic GB19083-2010 technical requirements standard for medical protective masks, medical masks need to meet the filtration efficiency of non-oily particles should not be less than 95%, and the filtration efficiency of oily particles is not defined. (Read more: Correct selection of medical masks to effectively prevent viral influenza).

In addition, among all the medical mask brands at home and abroad, there is no medical mask that can meet the detection of oily and non-oily particulate matter, and the 3M1860 medical mask, which is widely used in SARS and avian influenza medical accidents, only meets the United States NIOSH N95 certification, and the efficiency of 1860 medical mask to filter non-oily particles is greater than 95%.

To sum up, it is true that medical masks cannot be used as anti-haze masks, and it is not possible to fully believe the commercial hype that claims that anti-haze masks on the market are basically masks.

Yes, the gap in the fabric of the medical mask is large, and the harmful substances in the haze cannot be completely filtered, and it has to be changed every few hours, the purpose of the medical mask is to partition, not to filter, if you want to prevent haze, you need a special mask.

Things to pay attention to when choosing an anti-smog mask:

First of all, when purchasing anti-smog masks, you can pay attention to whether there is GB2626-2006 relevant standard certification on the outer packaging. Because there are currently three national standards for masks, GB2626-2006 "Respiratory Protective Equipment-Self-priming Filtering Anti-particulate Respirator", GB19083-2010 "Technical Requirements for Medical Protective Masks", and YY0469-2011 "Medical Surgical Masks". Among them, the standard of "Respiratory Protective Equipment - Self-priming Filtering Anti-particulate Matter Respirator" stipulates the technical requirements, testing methods and labeling of self-priming filtering anti-particulate matter respirators, which are more suitable for anti-haze masks.

At the same time, it is also necessary to choose from the appearance, the better the mask fits the face, the better the protective effect, because the protective effect of the mask has a lot to do with the fit between the mask and the face when worn. The fit is good, and the air outside the mask is not easy to enter the mask from the edge of the mask and be inhaled by the human body. Therefore, the fitting performance of disposable cup-shaped masks and disposable folding masks is far better than that of disposable flat masks and replaceable filter cloth masks.

I would also like to remind everyone that it is difficult to have both anti-smog and comfort, and some masks have high breathing resistance, and they will feel stuffy when worn for a long time. Therefore, people with respiratory diseases or the elderly and infirm should consider the breathing resistance of the mask when choosing a mask. When choosing a mask, first put the mask close to your face with your hands to feel normal breathing, and choose a mask that is more comfortable and easy to breathe.

In fact, anti-smog masks are still useful, but it is not long to prevent this fine particles, and the only standard that can be referred to is the national standard GB2626 industrial protection standard, which is formulated with reference to the N95 and N100 standards of the United States, and the protection effect of fine particles between PM5 can reach more than 90. When buying a mask, you must see whether there is a quality and safety mark, QS mark or safety protection certification. If there is no national standard and QS, they are all fake and shoddy copycat products, and they can't file fine particles at all.

This type of product generally cannot be wetted, so it cannot be washed. Disposable masks need to be discarded after wearing for 4 to 10 hours, because bacteria will multiply quickly (the so-called antibacterial masks on the market are all gimmicks, and all of them are false propaganda after testing).

In strong haze weather, wear a protective mask quickly, and the surface of the filter material will change color and dust in 1-2 hours. Those who don't have anything at all, fine particles are passed through to the body).