PPE

Correct choice of mask helps to break through the haze

At the end of 2013, a rare haze shrouded 25 provinces and more than 100 cities in China. As an increasingly frequent phenomenon in autumn and winter, the haze not only alerted the public awareness of environmental protection, but also triggered a national health self-defense campaign. 1n the face of such a “mix and match” of PM2.5 and PM10, did you choose the right mask

at present, the masks on the market are various and have different functions, or boast high-efficiency filtration performance, or claim comfort veneer, or directly mark “PM2.5 special”. When consumers choose products, they are often at a loss and may eventually spend a lot of money to buy masks with low filtration efficiency and poor protection performance

in this regard, experts gave suggestions: “the choice of masks should be considered from three aspects: protection performance, wearing tightness and comfort. PM2.5 and other suspended particles in the air are extremely small, and non professional protective masks can not effectively filter these fine particles. At the same time, if the mask can not effectively close to the face, it will also lead to protection failure. 1n order to alleviate the discomfort caused by long-term wearing masks, the comfort and air permeability of masks are also very important, which is related to the public acceptance and wearing time of masks. “

a high-quality respirator should be able to block PM2.5 and other fine suspended particles. Ordinary masks and disposable non-woven masks may have a certain blocking effect on dust and large particles, which can achieve effective blocking, but the protection for haze, PM2.5, bacteria, virus and other microbial particles is not enough. 1n the case of frequent air quality index explosion in various places, ordinary masks simply can not play their due protective role. Don’t buy colorful face masks for beauty. They can’t protect your breathing health

in addition, the tightness of the mask is also very important for anti haze. When consumers choose masks, they should carefully check the fit between the mask and the face by trying them on. Ordinary cloth masks mostly adopt plane design, which can’t close to the face. Fine particles can easily penetrate through the mesh of the cloth, or leak into the non close part of the mask and the face. 1n particular, some inferior masks do not even cover the whole mask and breathing area with filter material, so harmful particles can easily enter the breathing area. 1f you buy such a mask, not only can it not really play a protective role, but also make people have a wrong judgment that it is safe, in fact, it is completely in a polluted environment

for most consumers, the main reason why they are not willing to choose a professional protective mask is the discomfort caused by their respiratory resistance after wearing, and a good protective mask should also be very comfortable to wear. Take 3M respirator as an example, its cup design increases the internal space and ensures comfort. 1n addition, 3M’s unique cold flow exhalation valve can further reduce the accumulation of heat and moisture exhaled in the mask, reduce exhalation resistance, and provide wearing comfort. 1t is suitable for wearing the mask for a long time in hot and humid environment< 1n a word, there are three steps to buy a mask: 12. Test the tightness; 3. Feel comfortable copyright notice: This article is reproduced by 1nternet media, only representing the author’s point of view, and has nothing to do with this website. 1f the information column articles and comments violate your legal rights, please call to let us know and we will deal with them in time

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