The Helios BLS 160 is a robust ventilation component designed for both supply and extract air in rooms requiring protection from fire and smoke spread. By enabling uninterrupted air exchange, it helps prevent heat buildup and supports fire safety compliance. This unit meets fire resistance standards F30 to F120 according to DIN 4102. It is completely maintenance- and inspection-free, with no moving parts, ensuring long-term reliability. Built to resist moisture, oils, petrol, and weak acids, it offers durable performance in demanding environments. Installation is straightforward, and use is subject to project-specific type approval (vBG).