The Vents Quietline 125 mm axial fan for installation in ventilation ducts provides efficient ventilation with a maximum airflow of 197 m³/h through its 125 mm diameter duct. Designed for continuous operation or periodic use, this unit is particularly suitable for bathrooms, showers, kitchens, and other living areas that require reliable air exchange. Made from high-quality, durable plastic, both the housing and the impeller ensure long-term performance and resistance to wear. The fan operates with exceptional quietness, producing only 32 dB(A) of noise emission when measured from 3 meters away, achieved through specially designed airflow rectifiers that maintain performance while minimizing sound. Despite its low noise output, the fan retains high air pressure capabilities, making it effective for ventilation systems with plastic or flexible ducts over short distances. The energy-efficient single-phase motor features a ball bearing construction for reliable operation and includes thermal protection against overheating. Vibration-damping rubber connectors further contribute to quiet operation by reducing the transmission of mechanical noise. With an IPX4 protection rating, the fan is resistant to splashes from all directions, enhancing its suitability for humid environments. The unit operates at 2250 RPM with a power consumption of 13 W, balancing performance with energy efficiency. Serial installation of two fans is possible to increase working pressure for specific ventilation requirements. This axial duct fan can function as either an exhaust or supply fan, depending on system configuration needs.