PM2.5 Accomplishments New Business Opportunities, Anti Haze Mask Effectiveness Has Been Exaggerated.

< p > "ten surface haze volts" is definitely the hot word in 2013. Once it is labeled with < a href= "//www.sjfzxm.com/news/list.aspx ClassID=101112107105" > anti haze < /a >, the product will also be sold soft.

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Up to now, whether online shops or offline shopping malls, drugstores and convenience stores, supermarkets, home appliances stores, masks, air purifiers and new fans and other products have been sold out, and some channels even need 1 months before ordering similar products.

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< p >, however, Yang Wenfen, director of the national labor protection products quality supervision and Inspection Center (Beijing), told reporters that China's protection control has grading standards in industry, but there is no standard set for PM2.5.

"Now that the mask of a href=" //www.sjfzxm.com/news/list.aspx? ClassID=101112107107 "> PM2.5 < /a" is said by oneself, in fact, there is no national standard for such masks in China.

Yang Wenfen said so.

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< p > < strong > air cleaner is suspected of exaggerating propaganda < /strong > /p >

< p > a company responsible for providing indoor environmental purification services believes that air purifiers can not really clean indoor air.

"Even with good equipment, the air that can be purified is only within 5 square meters, because it is limited to the core of the purification board.

The company director said that the filter element of air purifier should be replaced after a period of time, and it should not exceed 6 months.

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< p > "at present most of the air purifier's working principle is still carbon adsorption, rather than decomposition, like a sponge, once it is full, it needs to be replaced, or it will emit harmful substances."

The personage expresses, indoor environment has all sorts of harmful substance, need to deal with various processes for different substances, including a series of processes, can remove harmful substances in space.

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< p > although the national standard has stipulated the technical requirements of the air purifier's electrical strength, leakage current, sanitation and safety, clean air volume, purification efficiency, noise and so on, it has not made mandatory provisions on the applicable area and the energy efficiency grade, and many enterprises have made use of the loopholes in the standard to make false propaganda.

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< p > the size of the applicable area of the air purifier is closely related to its ability to remove particles. It is the basic index of product pricing and the primary reference index for selecting and using air purifiers.

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< p > the Shanghai quality and Technology Supervision Bureau recently monitored the quality and safety risks of air purifiers. Of the 20 batches of the samples, 9 of the measured values did not reach the nominal applicable area, including PHILPS, YADU, Daikin and other famous brands.

Among them, the air purifier of Suzhou YADU Environmental Protection Technology Co., Ltd. has a nominal value of 25 square meters, and the measured value is only 12 square meters. The value of the purifier manufactured by Dajin air conditioning (Shanghai) Co., Ltd. in Shanghai is 51 square meters, the measured value is only 38 square meters.

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"P," Shanghai Chu de an environmental technology development Co., Ltd. market and innovation manager Zhu Li Yuan told reporters that in terms of efficiency or principle, technology in Europe and the United States is relatively more secure and reliable, especially in regard to PM2.5.

Some Japanese and Korean brands, including domestic brands that learn their technology, will be greatly reduced in efficiency and exaggerated publicity. This is due to technical reasons.

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< p > Zhu Lieyuan also mentioned that Japan and Korea and domestic brands mainly adopted the mode of "coarse filtration + electrostatic adsorption", which was banned in Europe and America 20 years ago.

Because this method will produce ozone when adsorbing dust and < a href= "//www.sjfzxm.com/news/list.aspx ClassID=101112107108" > micro particles < /a >, there will be poison in certain circumstances.

And some domestic and Korean brands in the publicity of technical indicators, emphasize the advantages of electrostatic adsorption.

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< p > "for an air purifier, it requires at least four layers in principle: the first layer is a coarse filter screen, which can adsorb large particles, dust, hair, dandruff and other naked eyes. It is generally between PM10 and 30; the second layer is a chemical anti microbial filter layer, which deals with mold and flower powder; the third level is activated carbon and potassium iodide composite layer, which deals with formaldehyde and other substances; the fourth level is HEPA value, which can remove PM2.5.

Basically, there are three levels in the country, and the efficiency is lower than that of the four tier.

It can be said that most of the domestic air purifier prices are below ten thousand yuan, and publicity can filter 97% to 99%, but in fact, it can not be done.

It really works for PM2.5 and can handle 90% to 95% air purifier. Ordinary people can't afford it.

Zhu Lieyuan said.

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< p > < strong > What are the standards of air purifier? < /strong > /p >

< p > for the standards of air purifiers, Lu Jianguo, Minister of comprehensive inspection of the national household electrical appliances < a href= "//www.sjfzxm.com/" > Quality Supervision and inspection center, told reporters that there are three kinds of standards in the state, namely GB4706.45-2008 "special requirements for safety air purifiers for household and similar electrical appliances" (hereinafter referred to as "special requirements"), GB/T18801-2008 "air purifier" (hereinafter referred to as "empty net standard"), GB21551.3-2010 "special requirements for antibacterial, sterilization and purification functions of household and similar electrical appliances" (hereinafter referred to as "antibacterial standards") and so on, three categories.

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< p > Lu Jianguo said that all air purifiers should meet one of the two items, such as special requirements and empty net standards, while those labeled with antibacterial or bactericidal functions need to provide relevant proof of antibacterial standards.

In addition, if the enterprise said that its air purifier has the corresponding air purification rate, noise and other indicators, it should comply with the relevant provisions of the air net standard.

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