FIELD: water and air purification technology.
SUBSTANCE: invention relates to air filters containing support structures of filters, which support particles of polymer sorbent. Polymer sorbent is a product of reaction of initial polymeric material based on divinylbenzene/maleic anhydride with a nitrogen-containing compound. Said air filter can be used, for example, for collection of chemically active gases.
EFFECT: invention provides efficient cleaning of air from chemically active gases, such as, for example, acid gases.
15 cl, 9 dwg, 3 ex
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