Filter Systems and Valves

BSSD offers a wide range of filtration systems and valves that ensure continuous air exchange in shelters, bunkers, and sensitive facilities. These systems provide a stable supply of fresh air while effectively reducing pollutants and CO₂. All systems meet the highest requirements of the Federal Office for Civil Protection (BABS) and are type-tested by the Spiez Laboratory (VBS).

The filtration systems combine technical reliability with ease of operation and emergency functionality. In addition, all valves and air management components can be modularly expanded to meet the increasing demands of large shelters, public institutions, and critical infrastructure—ensuring long-term functionality, safety, and occupant comfort.