4hw.org: with the coming of haze, have you done a good job in preventing haze? With the frequent occurrence of haze in various cities in recent years, it also directly stimulates the explosive growth of mask industry, and major businesses have made slogans such as efficient anti haze, so do you know which brand of anti haze mask is good? How to choose anti haze mask?
There are many kinds of masks on the market. Protective mask is a kind of close self-priming filter medical protective equipment, which can effectively filter the particles in the air and block the droplets, blood, body fluids and secretions, mainly used for disease prevention.
At present, there are many brands in China's mask industry and few influential brands. The brand market share of industrial enterprises is relatively low, and the brand share of the top three enterprises is less than 20%. Main domestic enterprises and brands: jiutouying, 3M, BAIANDA, etc. N95 gas mask can effectively filter the virus, and the use effect is better than mask. But it's heavy. As time goes on, users will feel uncomfortable. In addition, its air permeability is not as good as that of the nine headed eagle mask.
1. The pharmacy or hardware tool shop can buy masks or N95 gas masks. After using masks or N95 gas masks, they must be placed in a separate area, and do not contact with other items.
2. Medical protective mask is a kind of close self-priming filter medical protective equipment, which can effectively filter the particles in the air and block the droplets, blood, body fluids and secretions. It is mainly used for the prevention of diseases and effective for the prevention of armour flow.
3. Ordinary absorbent gauze mask is a kind of protective health care product, which has certain filtering effect on microorganism, droplets and dust in the air, has no protective effect, and has no effect on preventing armour flow
4. The common civil mask (cartoon mask) is a kind of daily health care product, which is mainly used to keep out the cold. There is no uniform requirement for its material and specification, and it has no effect on disease prevention
5. N95 respirator, in line with the national occupational safety and Health Association standard (NIOSH) N95 approval, N95 standard, uses 0.075 μ m diameter particulate air flow, passes through the respirator, blocking the success rate of more than 95%, which is in line with N95 standard (the straight diameter of coronavirus swine influenza virus, SARS source is about 0.1 to 0.12 μ m). This mask is high-performance medical, anti-virus, bacteria isolation, super comfortable mask, suitable for various occasions.
2017 haze mask ranking
First place: jiutouying nanometer PM2.5 mask
Second place: 3M dust mask
Third place: Kimberly mask
Fourth place: BAIANDA dust mask
Fifth place: North dust mask
Sixth place: Jike dust mask
Http://bianji.4hw.com.cn/e/4hw0408/ecmseditor/infoeditor/editors/images/spacer.gif No.7: egger dust mask
No. 8: ITO good mask
Ninth place: Chaomei dust mask
10th place: Green Shield dust mask
According to the research, when the concentration of PM2.5 increases by 103 μ g / m3, the excess death risk of all causes of death will increase by 2.29%, with a lag time of 1-2 days. The increased risk of excess death was 3.08%. So many people choose to wear masks to prevent haze from hurting their bodies.
Experimental results:
1. 3M mask: 3M is worthy of the industry benchmark. Its product performance is very stable, and its N95 level product can achieve 98% efficiency. This is only a separate test effect on the filter material.
2. Micro Silver Mask: this test result surprised Xiaobian. The filter effect of the mask with air valve actually reached 99%, which can reflect two problems. One is that the filter material itself has a good filter effect, and the other is that the air tightness of the air valve is very good when inhaled.
3. For the mask with sandwich filter element, as the air not only passes through the filter element, but also passes through the surrounding cloth, the filtering effect is poor, and the filtering effect is only 47%. (have a chance to test his filter element for comparison)
4. The filtering effect of medical unilateral mask is regular, and the filtering effect is 43%.
5. The cotton mask has almost no effect of filtering PM2.5, and the filtering effect is only 4%.
In a word, wearing masks can prevent haze to a certain extent, but the effect is not as strong as the clamor in the market.