The Ruck EMKI 6030 EC 21 is a 1‑phase inline mixed flow box fan designed for quiet, efficient, and reliable ventilation. It features an efficiency-optimized diagonal impeller with CFD-optimized aerodynamics to ensure stable and consistent airflow. The fan is housed in soundproof galvanized sheet steel for durability and reduced operating noise. 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 operation. Internal electronic temperature monitoring enhances safety and ensures dependable performance. This model is suitable for commercial, industrial, and general ventilation applications requiring low-noise, high-efficiency airflow.