Civil Defense Filtration Absorber (hereinafter referred to as the Filtration Absorber) is a type of civil defense filtration absorber, which is a core product of the wartime ventilation system. It is mainly used in the ventilation systems of contaminated air in civil defense projects.

Effectively filters toxic smoke, fog, biological aerosols, radioactive dust, and persistent pollutants from contaminated air, making it clean. Primarily installed in chemical defense level II and III civil defense facilities.

Process to remove chemical agents, biological warfare agents, and radioactive dust from the air using a free radical activator, fine filter, and filter毒剂, and to kill microorganisms retained in the fine filter unit.

Prevent the excessive proliferation or migration of biological agents by providing clean air within fortifications.