FIELD: ventilation.
SUBSTANCE: invention relates to ventilation, mainly to structural elements of air filtration systems, namely to precipitation filters of electrostatic plants for air purification. Filtering unit includes housing and at least two filtration elements, wherein filtration element consists of at least filtering material 4 and screen of electromagnetic field 5, wherein filter material 4 is made of polymer fibrous material with chaotic arrangement of fibres, and shield of electromagnetic field 5 of metal wire is arranged around surface of filter material, wherein the distance between the nearest rows of metal wire is less than the distance between filtration elements located in the housing.
EFFECT: technical result consists in improvement of efficiency of air filtration in installation for air cleaning, obtaining of optimum design by ratio of parameters: efficiency of filtration, dimensions and energy efficiency.
11 cl, 6 dwg
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