The Helios MTVA 160 is a durable exhaust air valve designed for use in all types of rooms, especially those requiring non-flammable ventilation components. It features a securely fixed air volume setting that prevents unauthorized adjustment, ensuring consistent performance. The valve is protected against corrosion with a high-quality epoxy paint finish, making it suitable for long-term use. A foam strip encircles the valve to create a tight, airtight seal, preventing any lateral air leakage. This valve is an ideal solution for reliable and safe exhaust ventilation in both residential and commercial environments