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The author:(作者)aaapublished in(发表于) 2014/12/14 9:05:06 Civilian mask GB will soon introduce three or four products or face elimination
Xinhua News Agency, Shanghai, December 13, Reuters new media (reporter Ye Jian Pan Xu Lu Wenjun) the day when the wind didn't come, fog and haze in China tend to make a comeback in many parts of the Middle East, streets and assorted colorful masks have also come it. Xinhua News Agency, "China" reporter was informed that the national civilian respirator-related comments recently submitted to the State Committee for Standardization, the fastest to take advice from the public and by the end of it. In a number of national standards, the seemingly unimportant criteria will trigger "anti smog masks" market turmoil?
Markets: increased by 20 times a year 40% will not reach
In recent years, the smog over and hit, "preventing haze masks" market share is also expanding rapidly. According to incomplete statistics, 2012 defense haze masks the size of the market of around 100 million dollars, but in the last year have soared to 2 billion yuan.
Shanghai XING nuo culture aramid fiber technologies company limited is the only civilian mask national standards drafting unit enterprise. Zhao Danqing, the company's expected anti-haze masks for sales this year would be even bigger.
Taobao search "anti-smog masks", most products have claimed more than 99% of this protective effect, prices range from a few cents to dozens of Yuan.
This year March, Association joint five provinces Association released masks products compared test results, in 37 paragraph masks samples in the, only 40% masks filter effect better, can do anti-haze effect both good wearing and comfortable of samples only 9 paragraph; May, Zhejiang Province elimination Insurance Board network purchased 25 a batch samples of anti-haze masks, submission found filter efficiency no a paragraph reached 90% above; September, Beijing city business sector think multiple masks brand claimed "anti-fog haze" "anti-PM2.5" suspected false propaganda, And several involved companies to initiate an investigation.
National labor protection products quality supervision and inspection center mask product master Gong Guozhuo told reporters that the products currently on the market was mixed, because of delay in civil respirator.
It is understood that the current standards on masks only the technical requirements of medical protective mask and respiratory protective equipment--self-priming filter type particles respirator. Former standard of surgical masks, while the latter are compulsory standards, classification is the "PPE", namely industrial respirator. , Including imported brands of 3M are based on industry standards such as the N95.
"In accordance with industry standards, about 40% without standards. "Gong Guozhuo said. National insurance products quality supervision and inspection center, sampling once mask preventing haze effect and even less than 50%. According to the relevant industrial respirator standard, namely the respiratory protective equipment--self-priming filter type particles respirator (GB2626-2006), for PM0.075 particle filtration efficiency will reach more than 95%.
Zhao Danqing revealed that taking into account the wear environments, civilian mask in the draft provisions on preventing haze effect lower than the industry standard. "But it's not too much lower. "He was expected to have three or four products has been phased out.
Results: industrial masks doubts breathability
"In addition to filtration performance, breathing resistance is another indicator of opinions. "Zhao Danqing said.
Breathing resistance, popular version is breathable. National insurance products quality supervision and inspection center, supervising construction of the laboratory has conducted many experiments. With reporters watching an experiment, for example, experiments with two TSI particle Tester and blood oxygen apparatus, mask filtering and permeability were tested. Laboratory personnel by smoking indoors created a haze PM2.5 values up to 582, wear 3M 8210 (N95), mask, masks, air inside the instrument value 7, filtration properties consistent with industry standards. Then, the experimenter took to a treadmill speed set at 6.5 km/h, after 3 minutes fast walk blood oximetry testing, blood oxygen saturation is 88%.
Blood oxygen saturation refers to the oxygen saturation in the blood, normal oxygen saturation was about 90%. Shanghai Zhongshan Hospital Medical Director Bai Chunxue introduction, generally healthy adults in blood oxygen saturation after brisk walking, jogging will not fall, 88% in the short term, "a big problem", but for a long time, then that will affect some people, resulting in heart and lung function; if it is below 80% heart beats too fast and even respiratory failure may occur, such as clinical symptoms.
The experimenter told reporters that repeated test confirms that the standard masks filter performance is good, but there are varying degrees of permeability problems, it also recommended increased civilian respirator this index of the starting point.
Expert: prevent abuse of industrial masks
3M company technical experts told reporters that the professional face masks are designed for healthy adults and for their use, not designed for young children and the elderly. For respiratory and heart diseases, and do not recommend wearing professional masks. These special people to consult the physician for advice.
Insiders pointed out that, in terms of industrial masks, Chinese people in masks are also easy to make similar "antibiotics" this kind of problem, so you should try to prevent industrial masks to control the civilian market.
On industrial use of masks in the States have more stringent standards. Developed countries in Europe and America, in addition to outside the product standard masks (N95,FFP), more stringent regulations. Such as Germany's GBR190 labor regulations, workers must pass a medical examination before I can use every day, and wear no more than half an hour.
United States respiratory protection standard (29CFR-1910.134) provides that employers need medical evaluation of the personnel must wear respiratory protection (not medical) in order to evaluate their capacity to wear breathing protection apparatus. This work must be performed by a physician or surgeon other doctors of occupational health professional license, and must wear respiratory protection and fit test before completion.
On the market, industrial masks are on sale in many countries are not on the street, but strict management in order monopoly-like ways. Gong Guozhuo said, "I hope we also have similar requirements, with international standards. ”
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