The invention relates to an air filtering absorber. The air filtering absorber is of a cylindrical combined type structure, and is mainly composed of a filtering absorber housing, a paper filer, and an
active carbon adsorption layer; the filtering absorber housing is composed of an internal pore plate, an external pore plate, an internal screen net, an external screen net, a pressing pad, and a sealing plate; the
paper filter is composed of a primary efficiency filtering layer, a high efficiency filtering layer, and a
paper filter internal pore plate. The air filtering absorber adopts the cylindrical combined type structure, resistance is low, adsorption area is large, multi-stage adsorption is realized, purifying capturing efficiency is high, high efficiency filtering material impregnated
activated carbon is adopted, the air filtering absorber is invented based on pure physical principles, no
energy consumption is caused, maintenance is simple and convenient. The air filtering absorber is suitable to be used in sealed spaces such as sealed defense works, vehicles, ships, and shelters, can be used for filtering radioactive ash, chemical toxins, and biological toxins, and purifying rate is increased to be 99.999% at a nominal air delivery.