METHOD AND CARTRIDGE FOR REMOVING IMPURITIES FROM THE WORKSPACE AIR Russian patent published in 1998 - IPC

FIELD: gas treatment. SUBSTANCE: invention relates to effluent gases from various production rooms and also to air purification and recovery means in rooms intended for carrying out electrotechnical operations. Air is filtered through absorption cartridge with absorption-filtration beds distinguished by that, in the air current direction, first sulfur-containing minerals or natural sulfur- containing minerals on inert carrier in mixture with activated carbon are placed followed by a bed comprising carbon-fibrous material Ц busofite impregnated with metal sulfide salts and inert filter material bed. In the air-purification cartridge, filter materials are packed in consecutively arranged, separated from each other beds fixed in sealed casing. Cartridge is connected to air duct with fan. EFFECT: enhanced air treatment efficiency. 6 cl, 1 dwg