Activated carbon filter

　　Air-purifying activated carbon is an internationally recognized high-efficiency adsorption material. It was used in gas masks as early as the "World War I". Activated carbon is widely used in car or indoor air purification. Activated carbon is a porous carbon-containing material, and its developed void structure makes it have a large surface area, so it is easy to fully contact with toxic and harmful gases in the air, and the strong adsorption force field around the activated carbon pores will immediately remove the toxic Gas molecules are inhaled into the holes, and activated carbon is polymerized into honeycomb block by the polar carbon core filter technology. Compared with the conventional activated carbon filter, its specific surface area is expanded to 2 times, and the air contact area is expanded to 20 times. The net resistance is reduced by 1.5 times, and it is also loaded with cold catalyst technology for catalytic decomposition of toxic gases such as formaldehyde. Therefore, 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.

　　Physical adsorption is mainly for macromolecular organic gases (such as TVOCs such as benzene) to adsorb these macromolecular pollutants through the microporous structure of activated carbon itself. Chemical adsorption is mainly aimed at some small molecular gaseous pollutants such as (formaldehyde, hydrogen sulfide, nitrogen oxides, etc.), because the small molecular gas is easily desorbed to form secondary pollution after being adsorbed, so the activated carbon should be chemically treated, so that the The adsorbed gas reacts with chemical components to achieve the adsorption effect.

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