FIELD: treatment facilities.
SUBSTANCE: invention is related to filtering materials for cleaning of gaseous medium, in which nanosize first fibres of aluminium oxide and second fibres are arranged in the form of matrix with formation of asymmetric pores, at the same time each of specified second fibres has diametre in the range from approximately 0.6 mcm to approximately 3.5 mcm, at the same time asymmetric pores have average size of more than approximately 10 mcm and less then approximately 38 mcm, material may retain particles, size of which is many times less than specified pore size.
EFFECT: according to invention, filter has high efficiency of filtration and high absorbing property.
47 cl, 7 tbl, 14 dwg, 10 ex
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