Mask Filtration Efficiency Is Only 1% Fog And Haze Mask Market Survey

Recently,

The law enforcement headquarters of the Municipal Quality Supervision Bureau carried out law enforcement inspection on a shop warehouse according to the clues.

After on-site inspection, law enforcement officers found that

Products suspected of serious quality problems, a total of 3 models of more than 400 pieces.

On the 20 day, the Enforcement Bureau of Shanghai Quality Supervision Bureau also raided the market of Tao Pu Road. Only 1000 fake and shoddy masks were found in the two shops. A large number of masks were suspected of counterfeiting 3M, Chao Mei and other brands.

Reporter survey found that the anti haze mask is not only a large number of brands, and the price is very different, the cheapest only four or five cents, the most expensive is hundreds of dollars.

At present, there is no national standard for domestic masks. Can many kinds of masks really adsorb PM2.5?

A number of brands were punished for false propaganda. The sampling rate was only 1%.

Before the surprise inspection, Shanghai Quality Supervision Bureau has issued the "mask product quality and safety risk early warning".

In March 9th, Shanghai Quality Supervision Bureau disclosed that according to the standard of industrial masks and textile safety technical specifications, 54 batches of 69 batches of samples collected from risk monitoring were not up to standard, accounting for more than 78%; 22 batches of samples.

The pH value of the respirator's fabric or lining is beyond the reference range, accounting for over 31%.

In fact, many of the masks on the market are labelling efficiency. Most of them are over 90%, but from the current public inspection results, there are not many respirators that can claim efficiency.

In May 2014, Zhejiang Provincial Consumer Protection Commission purchased 25 batches of anti haze masks on the Internet, and found that none of them had reached over 90%.

In Shanghai, the Quality Supervision Bureau found that some mask filters were less efficient than 10%, and there were both pharmacies and online shopping products.

The lowest filtration efficiency is only 1.1%. It is a comfortable mask made by Guangzhou Guanhua labor protection products Co., Ltd., which is made of M-6800.

Public information shows that a number of mask brands have been punished for false propaganda.

Reporters in Beijing industrial and commercial bureau website query found that the "nine Eagles" PM2.5 mask, which was once exposed by the media, was fined one hundred thousand yuan for false propaganda in July 2014.

The Shanghai industrial and commercial bureau announced in March 2015 that the "PM2.5" professional protective masks of the "Yi Yi" brand on the packaging of the products declared that "the upgraded version of the microfiltration technology, effectively blocked the PM2.5 particles in the air, and the filtration rate reached over 99%, effectively blocking the virus in the air. The virus filtration rate reached 99.9%". The actual test results did not meet the advertising claims, which constituted a false propaganda and was fined 100 thousand yuan.

In addition to the problem of haze prevention, the quality of the textile used by masks may not be up to the national standard.

A mask manufacturer introduced that some manufacturers had no quality control on textile raw materials, resulting in high formaldehyde content and pH value.

Because the human skin is weakly acidic, if the pH value of the product is too large compared with the human skin, it will cause irritation, cause skin allergy or induce infection.

Industrial masks "cross boundary" use of national standard, online shop fraud sometimes "only Logo"

"There are two reasons for the low filtration rate of masks. First, the brand of masks is mixed and the quality is poor. The two is the lack of national standards for civilian masks."

Yang Wenfen, director of the national quality supervision and Inspection Center for labor protection products (Beijing), said that the national standard of the KN95 respirator, which is more common in the market, is "respiratory protective equipment - self priming filter particle respirator" (GB2626-2006).

But this is not a standard for public masks, but a standard for industrial masks.

According to the introduction, such masks have higher filtration efficiency than PM2.5 smaller particles, but because of their emphasis on tightness, they reduce their air permeability.

Many laboratories in the laboratory supervised by the national labor protection products quality supervision and Inspection Center show that under the artificial haze environment, adults wear KN95 respirators for a certain period of time. Although the filtering effect is excellent, the blood oxygen content will decrease, and some people may feel dizzy and chest tightness.

In addition to the standard problem, the proliferation of counterfeit goods is also a "smog" against fog and haze masks.

Reporters found that many consumers choose to buy masks on the electricity supplier, but many online stores sell "cottage goods".

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The search on the platform found that the 3M masks were not only small in quantity, but also very similar in appearance.

For example, a masks sold at 3M's official flagship store priced at 7.5 yuan are priced at 2 yuan on many electronic business platforms.

In December 2015, Shanghai customs continuously seized two batches of counterfeit "3M" brand N95 masks exported from abroad, nearly 120 thousand.

These masks are rough and low quality filter materials, not only can not play a protective role, but also harm the body.

3M China responsible person told reporters, through consumer reports and self monitoring, the company has found fake goods on the electronic business platform many times.

"We have encountered some enterprises, in addition to Logo using their own, other packaging design to product style, and even publicity pages and trademarks are completely copied on us, and enterprises directly in the electricity supplier claims to be able to replace our processing mask."

One of the standard setting units for civil masks, Zhao Danqing, chairman of the Green Shield masks production company, said that some retail gauze filters only cost a few cents, even with no cost.

He also met with a few cents masks, some even without filters.

The new national standard is expected to be introduced in the near future, and "protective effect" will replace filtration efficiency.

According to industry sources, China's first national standard of respirators, "daily protective mask technology specification" has been basically discussed and consulted, and is expected to be released in the first half of 2016.

Yang Wenfen said that the new GB will no longer use filtration efficiency as the main evaluation index of masks, and adopt a new comprehensive evaluation system of "protective effect" to ensure that the air filtered by the mask can achieve good standards (PM2.5 below 75).

The new national standard will also add formaldehyde, fluorescent agent, pH value, microorganism and other safety indicators to ensure the safety of the textile part of the skin.

"These safety indicators have not existed in industrial masks in the past, and enterprises will produce them according to the new standards."

Zhao Danqing said.

Many industry insiders say that respirators can purify particles by filtering out particulates, but their filtering effects and comfort and air permeability are often difficult to achieve. Therefore, the new national standard will mask the protection level of the mask into multilevel, suitable for different environments such as severe and moderate pollution, so as to facilitate consumers to choose their own.

Li Guimei, Secretary General of China Industrial Textiles Industry Association, said that many anti haze masks are frying some concepts.

The core cost of respirators is mainly the filter layer, which determines the filtration efficiency. Besides, the design of the mask determines the comfort level and the degree of fit with the face.

The core of the anti haze mask is to balance the filtering effect and comfort.

If there is no special technology, the disposable mask will sell tens of dollars. "

3M company official also said that although the company has strengthened anti-counterfeiting measures on mask products in recent years, it has continued to crack down on infringers who manufacture and sell 3M counterfeit products in cooperation with government departments and Taobao. However, it is recommended to buy mask products from authorized channels and distributors of the company as far as possible.