Grading Of Respirators According To Air Pollution Level

A few days ago, there was news that

It is expected that the draft will be released before the end of this year, that is to say, there will be a national standard for masks.

How are the masks on the market in Nanjing today? What impact can the new national standard give us to buy masks? Yesterday, the modern express reporter visited.

Reporters in some big markets and some roadside canteens in Nanjing can still see some "

A cartoon mask.

In several large pharmacies, disposable masks and dust respirators are sold.

Of course, many pharmacies also have anti PM2.5 masks, which include production licenses, product standards and models, and production addresses.

But the modern express reporter noted that the execution of these masks is still recommended by the industry.

It is understood that the "daily protective mask technical specification" is not only related to textile raw materials, structure, label, appearance, pH value, microorganism, formaldehyde and other basic requirements, but also includes functional indicators such as particulate matter filtration efficiency, expiratory suction resistance index and adhesion index.

It is worth mentioning that the new GB will also classify respirators according to the degree of air pollution.

For example, different weather conditions, consumers can choose different levels of masks, and the respirator requirements of different grades are different in particulate matter filtration efficiency.

At the same time, the new national standard also paid special attention to different groups of people. Their performance requirements for masks were also different, so people like adults, children, frail and so on set different breath resistance indicators to classify masks.

Lu Bing, director of Jiangsu special safety protection product quality supervision and inspection center, has been involved in the formulation of the national standard for masks. She told the modern express reporter that the classification and grading are still being tested and demonstrated.

She said that the draft has been revised at least three times, and will continue to be revised. It is expected that it will be finalized in February next year. "Execution may have to wait until next June."

Lu Bing said that this will become the first national standard for civilian respirators.

The method of calculating the applicable area shall be specified.

In addition to masks, today's air pollution problem has attracted much attention. People are eagerly looking forward to the new national standard of air purification.

It is understood that the new national standard is also being revised. Last year, the National Standard Committee launched the standard revision of air purifiers, and revised the basic technical indicators and testing methods such as purification efficiency, clean air volume, purification life and so on.

The highlights of the new national standard include the addition of testing methods for purifying efficiency, formaldehyde and benzene. At the same time, the new national standard will also make strict rules for the calculation method of the applicable area of the air purifier.