Abstract: A gas purifying filter comprises a housing provided with gas inlet and outlet stubs arranged on side walls thereof. Rigidly secured inside the housing are stationary filtering elements fabricated from fibrous chemisorbing material in the form of rectangular plates disposed vertically and arranged essentially in parallel with one another. Opposite side edges of the rectangular plates are connected therebetween in pairs by partitions so as to afford an opening for the passage of gas between the plates facing the partition connecting the side edges of a pair of plates. Mounted above the rectangular plates are liquid compartments, the liquid serving to regenerate the filtering elements and being in contact with the upper section of the plates.