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

Effectively filters toxic smoke, fog, biological aerosols, radioactive dust, and persistent pollutants from contaminated air, making the air clean. It is primarily installed in Level B and C civil defense facilities for chemical protection.

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

Prevent the large-scale proliferation or migration of biological agents by supplying clean air to the fortification.