The Ruck EMKI 8050 EC 21 is a 1‑phase inline mixed flow box fan designed for reliable and efficient ventilation. It features an efficiency-optimized diagonal impeller with CFD-optimized aerodynamics to provide consistent and stable airflow. The fan is enclosed in a soundproof galvanized sheet steel housing for durability and low-noise operation. The removable fan unit allows easy maintenance and cleaning. Equipped with a high-efficiency EC motor, the fan provides stepless speed control for energy-efficient performance. Internal electronic temperature monitoring ensures safe and dependable operation. This fan is suitable for commercial, industrial, and general ventilation systems requiring low-noise, high-efficiency airflow.