TheBlauberg Axis‑Q 350 4E is a robust, wall-mounted axial fan engineered for high-performance ventilation. Nit +11 Blauberg Internationa +11 Blauberg Internationa +11. High airflow capacity of 2,500 m³/h (50 Hz) or up to 2,900 m³/h (60 Hz) for rapid ventilation Blauberg Internationa Blauberg Motoren.