CN95 certification is based on test standards previously developed by the CATARC research institute in its market study on the Chinese cabin air filter market. Mann+Hummel is supporting vehicle manufacturers in the certification process.

CN95 certification is based on test standards previously developed by the CATARC research institute in its market study on the Chinese cabin air filter market. Mann+Hummel is supporting vehicle manufacturers in the certification process.

The survey focused on ink manufacturers whose customers require digital printing for industrial, commercial and office applications. According to respondents, some of the benefits of choosing a high-quality pigment approach over mass-volume dye include a greater potential for success with substrates like ceramics, glass and textiles, while pigment colour lasts longer and resists fading more effectively.

CN95 certification is setting new standards in the cabin air filter market, although it is not yet a mandatory requirement for the sales of cabin air filters in China.

The fire safety of room ventilation systems in buildings is regulated by EN 15423. For air filters, it states that materials must be classified regarding reaction to fire under EN 13501-1

Constituent materials a

The primary filter screen of the fresh air fan can filter more than 10 μ m of air pollution particles; the filter materials of the medium and high efficiency filter screens are significantly denser and tighter than the primary filter screen of the first layer, and can filter PM2.5 and smaller nanometer ultra-fine particles, the pore diameter of which is very small, playing a precise and fine filtering role in the whole air duct.

Air filtration has three modes: inertia, filtration and oil bath. Inertia: because the density of particles and impurities is higher than that of air, when the particles and impurities rotate or make sharp turns with the air, the centrifugal inertial force can separate impurities from the gas stream.

The air filter consists of two parts: a filter element and a shell. The main requirements of an air filter are high filtration efficiency, low flow resistance, and continuous use for a long time.

With lingering air quality problems both inside and out, many people are turning to air purifiers to create healthier, cleaner air in the home. These air purifiers use numerous technologies and have many different components.One of the most important components, however, is the air filter. Although some air purifiers do not have filters, most models do. Just like the purifiers themselves, these filters come in many different shapes, sizes, and materials. They also meet many different purposes.Understanding how these filters work is crucial if you are going to make the right choice for your home or office. When you know the various types of filters, as well as their unique purposes, you can make a smart decision for your specific air quality needs... 

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