The Helios MTVA 100 is an exhaust air valve designed for reliable ventilation in various room types, particularly where non-combustible components are essential. It features a factory-set volume flow that is tamper-proof to ensure consistent performance. The unit is finished with an epoxy powder coating for long-term corrosion resistance. A circumferential foam ring provides an airtight seal, effectively preventing lateral air leakage. This valve is a robust and efficient solution for controlled exhaust air management in safety-sensitive and regulated environments.