Dry weather, airborne particulate matter increased, many people will choose to wear a mask when going out. However, in the face of anti-haze, anti-dust, anti-bacteria and other functions of the mask, consumers should be how to choose? A few days ago, the reporter learned from the relevant departments, from November 1 this year, for the mask market variety, the quality of the problem of uneven, China's first civilian protective masks national standards - "daily protective masks technical specifications" officially implemented. Consumers buy masks in the future, you can follow the standard.
In the haze weather, many consumers like to use the 3M mask with better protection. Liu Chenghe photo
"Anti-haze" masks of mixed quality
The reporter searched in a number of e-commerce platforms found that a wide variety of masks, disposable non-woven masks, there are gauze masks, there are a lot of labeled to resist PM2.5 haze masks. The reporter found that as long as the packaging is labeled with the word anti-haze, the price will be much more expensive than the general mask. In one of the highest-selling online store, the reporter saw specifications for a box of 50 disposable masks, priced at 8.8 yuan, the unit price is only 0.18 yuan. The "disposable anti-dust anti haze PM2.5 mask" 3 only price of 19.9 yuan, calculated a price of 6.6 yuan, is more than 30 times the price of the former.
Labeled different functions of the mask, in addition to the price difference, in the main technical indicators also differ. The reporter noted that some of the masks sold on the network to implement the "respiratory protection products self-priming filtering anti-particulate respirator" industrial mask standards, some of the implementation of the "technical requirements for medical protective masks" and "medical surgical masks," medical product standards, as well as a number of mask manufacturers to implement the European and American countries, and even some of the production standards used at all do not labeling.
According to the consumer's response can also be seen, for the mask dust haze PM2.5 effect, most consumers can only rely on the use of the feeling to judge, in fact, can play a big effect, the buyer's heart is not very clear.
The reporter learned that although many masks will be in the packaging of the prominent position marked "filtration efficiency", but there have been media reports, the relevant departments of the claimed "removal rate of up to 90% or more" of the mask for testing, the actual removal rate of only 30% to 40%. According to the Shanghai Quality Supervision Bureau disclosed in March this year, for the 69 batches of samples from Shanghai manufacturers, physical sales stores and online stores for testing found that 54 batches of masks with a minimum filtration efficiency of less than 90%, 28 batches of masks containing carcinogenic substances formaldehyde.
Specialized standards for civilian masks
Under the haze weather, consumers buy masks, most of them hope to dust and haze, to reduce the inhalation of PM2.5 purpose, but the people in their daily lives in the use of masks, is a reference to industrial or medical standards of production, obviously does not meet their own needs, coupled with the masks market marking confusion, there is no uniform judging standards, to the consumer to choose the problem.
In this regard, in March last year, Jiangsu Province, the Special Defense Center jointly organized by the China Textile Industry Association held a standard project seminar, and then participated in the establishment of China's first national standard for civilian protective masks. November 1 this year, China's first national standard for civilian protective masks - "daily protective mask technical specifications" officially implemented. The standard from the safety, hygiene and protection of three aspects of the product to determine, while the mask's packaging, labeling and storage and transportation have strict regulations, the requirements of the logo contains "product protection effect level" and "implementation of the standard number" and so on.
It is understood that the new regulations according to different air quality, but also the mask's level of protection from low to high is divided into four levels: D, C, B, A level. For example, D-level masks for air quality moderate and below the pollution, when the PM2.5 concentration ≤ 150 micrograms per cubic meter; on the contrary, A-level masks for air pollution is extremely serious, PM2.5 concentration of 500 micrograms per cubic meter when used. At the same time, the protective effect of the mask also varies, from D to A level, the protective effect is not less than 65%, 75%, 85%, 90%. According to the national standard requirements, consumers in accordance with the standard selection of suitable protective masks to wear, inhalation of air quality index must reach above good.
How to buy masks under the new standard
Compared with the previous mask standard, the new standard is faced with the use of the population is in addition to children, infants and young children in addition to the general public. So, with the daily protective mask related norms, many people want to understand how to select masks.