Safety-related air cleaning systems for nuclear power plants go beyond the commonly known role of air filters. These systems are used to prevent the release of radioactive airborne contaminants to the working environment of the nuclear plant and the outside atmosphere. As engineered safeguard systems, they are used to remove particulates and radioactive iodine from contaminated air.
The prevention of even extremely low concentrations of airborne contamination is fundamental to the safe operation of a nuclear facility and an important factor for cost efficiency. There for the nuclear industry has made major contributions to the development of new and improved air cleaning equipment.