Personnel Protection Filtration Absorbers (hereinafter referred to as Filtration Absorbers) are a type of personnel protection filtration absorber that is a core product of wartime ventilation systems. They are primarily used in ventilation systems for contaminated air in personnel protection 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 generator, fine filter, and decontamination filter, while destroying microorganisms retained in the fine filter unit.

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