{"id":4700,"date":"2026-02-02T14:17:02","date_gmt":"2026-02-02T14:17:02","guid":{"rendered":"https:\/\/www.bunker-bssd.de\/shop\/unkategorisiert\/gas-filter-gf-40\/"},"modified":"2026-11-11T11:00:09","modified_gmt":"2026-11-11T09:00:09","slug":"gas-filter-gf-40","status":"publish","type":"product","link":"https:\/\/www.bunker-bssd.de\/en\/shop\/shelter-equipment\/filter-systems-and-valves\/gas-filter-gf-40\/","title":{"rendered":"Gas Filter GF-40"},"content":{"rendered":"

Gas Filter GF-40 \u2013 ABC Protection Filter for Shelters<\/h2>\n

The GF-40 gas filter<\/strong> reliably protects occupants in shelters against nuclear, biological, and chemical (NBC) <\/strong>contamination. It prevents the ingress of radioactive dust, biological aerosols, and chemical pollutants, thereby ensuring a safe and controlled air supply. <\/p>\n

Contaminated outside air is drawn in by a fan and initially passes through a particulate filter, where radioactive particles and biological agents are effectively retained. The air is then purified by an activated carbon gas adsorption filter, which removes chemical contaminants. As a result, only filtered air enters the shelter. <\/p>\n

Design and Construction<\/h2>\n

The GF-40 gas filter features a robust, powder-coated steel housing<\/strong> designed for long-term use in civil and governmental shelter systems. Its compact design allows secure floor mounting and seamless integration into existing ventilation systems. <\/p>\n

Standards, Certification, and Type Approval<\/h2>\n

The GF-40 gas filter complies with the regulations of the Federal Office for Civil Protection (BABS).<\/strong>
Type testing is conducted by the Swiss Federal Department of Defence (VBS).<\/strong><\/p>\n

Approvals <\/strong>(depending on manufacturer): BZS T 76-003; BZS T 88-013<\/p>\n

BSSD ensures that only tested and approved gas filters<\/strong> are used in shelter systems.<\/p>\n

Integration into Ventilation Systems<\/h2>\n

The GF-40 gas filter <\/strong>is designed as a system component of the VA-40 ventilation unit<\/a>.<\/strong> It operates in conjunction with the VA-40 and provides the gas filtration stage for NBC protection<\/strong> within the system. This makes the GF-40 an integral part of the filtered air supply during gas filter operation. <\/p>\n

In particular, the combination of the VA-40 ventilation unit and the GF-40 <\/strong>gas filter ensures compliant switching from fresh air mode to gas filter mode in accordance with BABS requirements.<\/p>\n

Technical Data<\/h2>\n
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    Airflow rate: 40 m\u00b3\/h<\/strong><\/p>\n<\/li>\n

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    Pressure drop: 370\u2013420 Pa<\/strong><\/p>\n<\/li>\n

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    Housing material: powder-coated steel<\/strong><\/p>\n<\/li>\n<\/ul>\n

    Individual Consultation for Gas Filters<\/strong><\/h3>\n

    Our experts support you in selecting the appropriate gas filter for your shelter system. Contact us<\/strong> to determine the optimal solution for your project. <\/p>\n\n

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