Class A
Corresponding to severe pollution
Use when PM2.5 concentration ≤ 500μg/m3
Class B
Corresponding to serious and below pollution
Use when PM2.5 concentration ≤ 350μg/m3
In the face of air pollution, wearing protective masks is a popular choice for many citizens. However, there are a wide variety of masks available on the market. In the end, what kind of mask protection is most effective? A survey conducted by the Beijing Morning Post found that the standard for implementing different protective mask products was varied. Although the new national standard for daily protective masks had been implemented for three months, it was not a mandatory standard and it was difficult to implement new national standard products. In response, some mask manufacturers stated that they have planned to manufacture protective masks that will implement the new national standard and are expected to be available this fall.
Survey by reporter
Masks are varied
From November 1, 2016, China's first national protective mask standard GB/T 32610-2016 "daily protective mask technical specification" was formally implemented. Today, more than three months have elapsed since the implementation of the new national standard. The Beijing Morning Post reporter recently visited a number of Shangchao and pharmacies and found that the standard for the implementation of the name of the mask on the market is various, but it is rare to implement masks for the new national standard.
The reporter noticed that there are about a dozen kinds of mask brands in pharmacies, daily-care health food stores and supermarkets, and some brands have different types of anti-mite masks. Nearly half of the mask's implementation standards are GB 2626-2006, which is a mandatory national standard "respiratory protective equipment self-priming filter type particulate respirator", such as TO-PLAN, Baoweikang, 3M and other brands. The other half perform different corporate standards, such as pro-net and gifted brands. At the same time, some corporate standards have different types depending on the fabrics. For example, there are two standards for green shields, namely, non-woven masks and cotton cloth masks.
In addition, a green shield mask on the packaging indicates that the product refers to the new national standard GB/T 32610, can reach the national standard A, but the implementation of the standard is still its corporate standard. There are also individual masks that are implemented in foreign standards, but have been tested to meet the requirements for filtration efficiency in GB 2626. In total, there are as many as seven types of masks that reporters see.
The price of different brands of masks is between 20 and 40 yuan, with 1 to 3 masks. The price of a single mask ranges from 10 yuan to 30 yuan. From the material point of view, there are two kinds of masks and non-woven masks that are usually made of pure cotton and filter. There are two types of headgear and lugs. Some masks also have breathing valves.
"I don't understand these criteria. Selecting a tamper-evident mask is a matter of looking at the brand and buying a well-known brand. Then, looking at the efficiency of the filter, the 95% mark should be good," a customer told reporters. Some clerk also said that he had never heard of a new national standard mask.
The reporter learned that before the introduction of a new national standard for protective masks, the standards for masks in China are "respiratory protective equipment self-absorbing filter type particulate respirator", "medical protective mask technical requirements", "medical surgical mask", etc., but all belong to labor. Protection and medical protection standards. The masks produced on the market in accordance with the labor industry protection standards have no problem in dealing with smog PM2.5, but they are considered to be “chicken killersâ€. Some people in the industry believe that professional protective masks are not suitable for pregnant women, the elderly and other special groups to wear.
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