Electrostatic electret filter technology.Home air purifier Manufacturing

　　The use of non-woven fabrics loaded with electrostatic electrets to collect dust is an upgraded version of HEPA technology. The advantages are low wind resistance, high efficiency, high dust holding capacity, Z is mainly safe. Represented by the “high-efficiency electrostatic air filter” on the market, the breakthrough filter material that carries permanent static electricity is used to effectively block particulate pollutants larger than 0.1 microns in the air, such as dust, dander, pollen, bacteria, etc., at the same time. Impedance ensures energy saving. In addition, the deep dust-holding design ensures a longer service life. As of 2013, it has been widely used in home and car (such as SAIC, Volkswagen, GM and other well-known brand-selling models) air-conditioning and some commercial construction areas (such as the Bird's Nest, Beijing Hotel, Capital Airport Phase III).

　　Activated carbon filter

　　Activated carbon for air purification is an internationally recognized high-efficiency adsorption material. As early as the "World War I", it was used in gas masks. Activated carbon is widely used for air purification in cars or indoors. Activated carbon is a porous carbonaceous material. Its developed void structure makes it have a large surface area, so it is easy to fully contact with the poisonous and harmful gases in the air. The strong adsorption force field around the activated carbon pores will immediately become poisonous. Gas molecules are sucked into the pores, so activated carbon has a strong adsorption capacity and is also the main technology for removing gaseous pollutants. Activated carbon adsorption technology is mainly divided into two categories: physical adsorption and chemical adsorption.

　　The physical adsorption is mainly aimed at the adsorption of macromolecular organic gases (such as TVOC such as benzene) through the microporous structure of activated carbon itself. Chemical adsorption is mainly for some small molecule gaseous pollutants (formaldehyde, hydrogen sulfide, nitrogen oxides, etc.), because the small molecule gas is easily separated again to form secondary pollution after being adsorbed, so it is necessary to chemically treat the activated carbon to make it The adsorbed gas reacts with the chemical composition to achieve the adsorption effect.

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