Shelters built for the protection of the civilian population should provide the ambient air that will ensure the minimum living conditions of the people during their stay. If there is radiation, biological or chemical flotation and particles in the air to be sent to the shelter, it must be passed through appropriate filters to bring this dirty air to minimum living conditions.
The SAFE series has been developed to meet the fresh air requirements of shelter areas during radioactive fallouts. It prevents the air containing radiation and chemical gases from entering the ducts into the shelter areas by filtering this air. These units have a high degree of sealing and have preostads which can be connected to automation.