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The importance of the impermeability of prevent mist haze mask is analysed

by:Copper Plus     2021-01-10
Impermeability of anti fog mask is analysed with the air pollution is more and more serious, the importance of the national many places around the fog weather, people wearing masks, prevent mist haze appears, however, prevent mist haze masks must be have good sealing, so exactly what importance in sealing, disposable masks below small make up will come under the simple introduction to the customers. Factors affecting the effects of masks the haze is various, mainly have masks, high-quality filter material, wear mode in sealing, one of the important factor is the mask of closure are in good condition. Filtration efficiency is one of the masks the key technical indicators, but for respirator filter efficiency of detection is the hypothesis that the sealing conditions, such as the N95 respirator can cut off 95% of the particulate matter in the test. But if there is no seal, particulates from other places, it is no meaning to the data in a standard. The haze masks on the market on the design of the enclosed there are a lot of defects, such as mask around the edge if seal is not good, it is easy to cause gas without filtration membrane directly into the respiratory system. Especially the bridge of the nose position relative to the convex face, easily when they are wearing a mask on both sides of the bridge of the nose form a larger gap. Although now most masks in the bridge of the nose with aluminum strip, to shape seal, but it is hard to achieve the ideal effect. This means that even if the businessman claimed to have adopted how advanced membrane filter, the filtration efficiency reached the standard of how high, but the masks in the actual use process is difficult to guarantee the gas 100% through membranes, quite amount of haze still can not through masks membrane into the respiratory system. So a lot of PM2. 5 particles can enter the alveoli, and then through the alveolar wall into the capillaries, then enter the blood circulation system, accumulate over a long period will seriously affect the physical health. Shallow of respirators are classified analyses nitrile gloves and latex gloves what difference
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