The National Standard Of Protective Masks Will Be "Banned" When It Comes To Mixed Fish And Grass.

The AQSIQ and the National Standardization Management Committee issued the national standard for the technical specification of daily protective masks, and will be formally implemented in November 1st this year.

This is the first national standard of China's civil respirator, and the implementation of the national standard of protective masks means that the market of respirators will be cleared up.

It is understood that

(PM2.5) the protective effect and wearing safety performance are the two key indicators of the "daily protective mask technical specification".

This standard is applicable to respirators that are used to remove particulates in air pollution environment in everyday life.

The level of protection is set according to the air quality category of the national air quality standard, and the protection effect grades are divided into D, C, B and A-level according to the level of protection. The corresponding environment is as follows: D level is suitable for moderate (PM2.5 concentration is less than 150 g/m3 g/m3) and below pollution, C level is suitable for severe (PM2.5 concentration is less than 250 u g/m3) and below pollution, B grade is suitable for serious pollution (PM2.5 concentration is less than 350 mu), class A is used at 500 min.

Wearing masks according to standard requirements can reduce the concentration of inhaled PM2.5 to less than 75 g/m3, so that the air quality in inhalation can reach the level of above and above.

Because of the wide variety of masks and the lack of uniform standards and standards,

The market is chaotic.

In March this year, the Shanghai Quality Supervision Bureau disclosed publicly the basis.

And textile safety technical specifications, etc. 54 batches of 69 batches of samples collected from risk monitoring are not up to standard.

At the same time, the national standard requires that the respirator should be able to safely and firmly protect the mouth and nose. There should be no sharp corners and sharp edges that can be touched. The standards for formaldehyde, dyes, microbes and other factors that may cause harm to human body are specified in detail.

Taking into account the safety of the wearer when walking, the standard stipulates that the visual field below the mask should not be less than 60 degrees, so that the wearing of the wearer can be avoided because of the high arch design of the mask.

Although many protective masks on the market are labeled with filtration efficiency and claim to be over 90%, from the current public inspection results, there are not many respirators that can claim efficiency.

Shanghai Quality Supervision Bureau found that some protective masks filtration efficiency was less than 10%.

Among them, Guangzhou Guanhua labor protection products Co., Ltd. is a M-6800 type comfortable respirator, and its filtration efficiency is only 1.1%.

With the introduction of the national standard, the confusion in the market of civilian respirators will be standardized.