How to distinguish the authenticity of a mask test?

How to distinguish the real from the fake?

First, look at the packaging box of the mask.

Generally, there will be a laser anti-counterfeiting label on the real mask packaging box. In the case of squint, the security label will change color, and the black will merge with the red to become one color. If it is a counterfeit mask, it does not have the anti-counterfeiting function of this discoloration.

Second, observe the packaging bag of the mask.

The text on the formal mask packaging bag is dark gray and has a certain degree of transparency. The text color on the counterfeit mask product will be darker and there is no certain transparency.

Third, smell the mask.

If it is a regular mask, we first smell the mask when we get it, and the regular mask only has a faint scent of activated carbon.

Fourth, observe the printing of masks.

The text on the regular mask is engraved with a laser, and the printed traces are also at a 45° angle. Well, if it's a counterfeit mask, most of the ink will be printed with dots.

Fifth, look at the label of the mask.

Nowadays, some people who can't buy masks at home may buy masks abroad. If it is a non-domestic mask, if it enters China through formal channels, it will definitely have LA labor safety certification. Domestic masks, whether they are used domestically or for export, will definitely have LA certification and QS labels abroad.

Sixth, check the official website.

If it is a regular mask, then you can go to the official website of the State Food and Drug Administration to inquire. Because in my country, all masks produced from regular manufacturers can be queried on the official website of the State Food and Drug Administration.

Easily distinguish the real mask from the fake!

It's usually just a matter of looking at the cover.

1 3 Step by Step Reading.

The first method, we cut the disposable mask, the regular medical disposable mask is three layers, if the cut is found to be two layers inside, it is unqualified. The material of the middle layer is different from the two sides, we use a lighter to bake it, the middle layer of the mask will not burn by itself, and there will be no flames, because the regular mask is made of meltblown cloth, if the tested mask can ignite a flame, this is not a meltblown cloth, and it cannot really play a protective role.

See the remaining 3 images.

The second method, we find a piece of paper to tear it up a little, put it on the table, put the mask on it and pick it up, if there is a piece of paper that is adsorbed, it means that it is qualified. Because the middle is melt-blown cloth, the melt-blown cloth can isolate bacteria, and it can adsorb the paper piece, and it is qualified.

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The third method, we pour a little water on the mask, and you will find that the real mask is drip-proof, while the fake disposable mask is like paper, and the water leaks out as soon as it is poured.

Methods for identifying the authenticity of masks:

1. Taste

The first smell, the 3m mask does not have any peculiar smell, only the activated carbon mask has a faint fragrance of activated carbon, and the rubber belt has no smell.

2. Packaging

The most obvious difference between real and fake masks is the color, the text color of fake masks is darker, and there is no transparency, and the packaging color of real masks is dark gray with a certain degree of transparency.

3. Logo

Look at the LA logo and QS certification, not printed on the box, that one is useless, it is two small labels. Non-domestic masks, as long as they are formally incoming, must have LA certification, and domestic masks, whether they are used domestically or for export, must have QS and LA certification.

Mask Introduction:

The dust blocking efficiency of the mask is based on its blocking efficiency against fine dust, especially respirable dust below microns. Because this particle size of dust can directly enter the alveoli, it has the greatest impact on human health. The principle of dust blocking of gauze masks is mechanical filtration, that is, when the dust collides with the gauze, some large particles of dust are blocked in the sand cloth through layers of barriers.

In particular, dust smaller than a micron can pass through the mesh of the gauze and enter the respiratory system.

Dust masks, which are composed of activated carbon fiber felt pads or non-woven fabrics, and those respirable dusts smaller than microns are blocked during the passage through this filter material, which plays the role of filtering the air. The anti-leakage design of the mask is to prevent air from passing through the gap between the mask and the human face without being inhaled through filtration. When the shape of the mask does not fit the face, the dangerous substances in the air will leak in from the misfit and enter the person's respiratory tract.

1. Use the packaging information to check the authenticity of the maskThe information on the outer packaging of the protective mask is of great help to identify the authenticity of the mask. For example, the outer packaging of a regular flat medical mask will be marked with the production license number of the product, because medical masks are medical devices, and enterprises must obtain a production license number before they can be produced, and the number can be verified in the ** of the State Drug Administration. In addition, the manufacturer's brand can also be used as an important reference for selecting masks, and some well-known brands, such as 3M's N95 masks, provide authenticity inspection services, which can be checked by scanning the *** on the package.

2. Whether the mask contains meltblown nonwovensThe mask is composed of multiple layers of spunbond and meltblown nonwovens, of which meltblown cloth plays a key protective role. Due to the high level of melt-blown cloth and the shortage of near-source sources, some fake and shoddy masks do not use meltblown cloth, which also lacks the main protective effect. The meltblown fabric is located in the middle layer of the mask, which is significantly different from the spunbond fabric on the surface.

The meltblown cloth has a dense structure and must be white in color; The spunbond fabric has a relatively loose structure and high transparency. In addition, there is also a significant difference in the strength of the two kinds of cloth: the strength of the meltblown cloth is very low, and it will be broken by hand; Spunbond fabrics, on the other hand, have higher strength and require a lot of force to tear.

3. Direct observation of the appearanceIf you are really reluctant to cut the mask, you can also observe it directly through the appearance of the mask. Because of the dense structure of melt-blown cloth, qualified masks are almost opaque, and many fake and inferior masks without melt-blown cloth have high light transmittance (please refer to the figure below for specific comparison), qualified masks and fake and shoddy masks will be significantly different under the same light source, even in natural light, the qualified products are not transparent when worn, and the face is faintly visible when the fake and shoddy products are worn. Extended information: The product registration number is usually marked on the outer packaging of more formal surgical masks.

The numbering rules are usually as follows: x device note (x is the abbreviation of each province, such as Hubei, Zhejiang, Guangdong, etc.) + registration year + 264 (indicating that it belongs to the 64 classification of Class II medical devices) + number.

If it is a medical surgical mask or a medical protective mask, then you can use it with confidence, if it does not contain the words "medical surgery", such as "disposable non-woven medical mask", "disposable medical mask", "ordinary medical mask" and other words that do not contain surgical words, they do not belong to the officially recommended medical surgical mask, and medical treatment does not mean surgical treatment. Then there are the production standards. The production standard of medical protective masks (KN95 N95) is GB19083-2010, and the standard number of medical surgical masks is:

Y0469-2011, while other anti-haze standards are GB2626-2006, which is generally enough for industrial-grade protective masks to prevent droplets. Reference**: Shantou Municipal Health Bureau - These masks are unqualified and are being recalled!

Recently, affected by the new coronavirus pneumonia epidemic, all kinds of masks have become urgently needed materials for everyone to buy and medical staff, but in this time of crisis, there are still unscrupulous merchants who manufacture and sell unqualified counterfeit and shoddy masks.

The novel coronavirus epidemic is still fermenting, and masks have become a must-have for people's travel. In order to prevent consumers from buying counterfeit masks, today, the people's official announcement that medical mask information can be queried online to distinguish the authenticity.

According to the official introduction, consumers who buy medical masks and want to know the company's production information and approval number can be queried on the official website of the State Drug Administration. Click on "Medical Equipment" and "Domestic Equipment", enter the name of the company you want to query, and you can query the details of the mask.

The National Health Commission pointed out that disposable medical masks are suitable for the public to use in non-crowded public places; Medical surgical masks are suitable for suspected cases, public transportation drivers, taxi drivers, sanitation workers, public service personnel, etc. Medical protective masks are suitable for wearing in fever clinics, isolation wards, medical staff and confirmed patients when transferring.

After buying a batch of masks, you must check the authenticity first, otherwise there is still a risk of infection if you bring fake and shoddy products. So how do we distinguish the authenticity of the masks we wear now? A few days ago, the people's ** issued a document to give a way to identify:

A look: mainly to see whether the packaging is exquisite and the product description--- for masks: whether the packaging is a product standard and how much is the actual dustproof filtration efficiency of the product?

Generally speaking, the quality of the mask is good, the packaging is exquisite, there are production implementation standards, and the dust filtration efficiency PFE is greater than 95%; For labor protection masks: the packaging is marked with the standard of KN90 KN95 KN100 in line with the national standard GB2626-2006, and what is the actual filtration efficiency of the product? Generally, the packaging is more exquisite, and the quality of the labor protection mask is good if the dustproof efficiency is greater than 90% in line with the national standard GB2626 and the standard above KN90.

Second smell: The mask has a slight smell of chemical fiber, which is a normal phenomenon. If there is a pungent taste, it is an inferior product.

Three wear: After wearing it, the mask that breathes comfortably and has good sealing is a better product.

Four dismantling: cut the mask, if there is filter paper and strong adsorption, the filter paper is easy to stick to the hand, such a product is better. (Quoted from "Lanhe Detection Method").