Correct choice of mask to help break through layer crouch

At the end of 2013, a rare haze enveloped 25 provinces and more than 100 cities across the country. As an increasingly frequent phenomenon in autumn and winter, this haze has not only awakened public awareness of environmental protection, but has also sparked a nationwide health self-defense campaign. Faced with such a mixture of PM2.5 and PM10, did you choose the right mask?

At present, there are a variety of masks available on the market with different functions, or advertised as high-efficiency filtration performance, or claiming comfort and veneer, or directly identifying “PM2.5-specific”. Consumers are often at a loss when choosing products, and may end up paying a lot for masks with low filtration efficiency and poor protection.

In response, the experts gave advice: “The choice of masks needs to be considered in three aspects: protective performance, wearing tightness, and comfort. PM2.5 and other suspended particles in the air are extremely small and non-professional protective masks cannot be effectively filtered. These small particulate matter, at the same time, if the mask can not effectively close with the face, it will lead to protection failure, and to ease the long-term wear masks caused by discomfort, mask comfort and breathability is also very important, which is related to wear The mask's public acceptance and wearing time.”

A good respirator should have the ability to block fine suspended particles such as PM2.5. Ordinary masks and disposable non-woven masks may have a certain blocking effect on dust and large particles and can effectively block them, but it is not sufficient for protection against haze, PM2.5 or microbes such as bacteria and viruses. In the situation where the Air Quality Index frequently bursts out of the table, ordinary masks simply cannot play their due protective role. Don't buy colorful veil masks for beauty. They don't protect your breathing health.

In addition, the closeness of the mask is also important for resistance. Consumers should carefully check the degree of closeness of the mask with the face when purchasing a mask. Ordinary cloth masks are mostly made of a flat design and cannot be in close contact with the face. The fine particles can easily penetrate through the mesh of the cloth or leak from the non-adhesive parts of the mask and the parts in contact with the face. Of particular note is that some poor quality masks do not even cover the entire mask and breathing zone. The harmful particles can easily enter the breathing zone. If such a mask is purchased, it will not really play a protective role, but it will also lead people to make a wrong judgment, thinking that it is safe, but in fact it is completely in a polluted environment.

For most consumers, the main reason for unwillingness to choose a professional respirator is the discomfort caused by their respiratory resistance after wearing, and a good protective mask should be comfortable to wear. Taking the 3M protective mask as an example, its cup-shaped design increases the internal space and ensures comfort. Combined with 3M's unique cold flow exhalation valve, it can further reduce the amount of heat and moisture exhaled by the user to accumulate in the mask, reduce the resistance to exhalation, provide comfort for wearing, and is suitable for wearing the mask for a long time in a hot and humid environment.

In summary, buy a mask in three steps: 1. Check filterability; 2. Test adhesion; 3. Feel comfortable.

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