Ebmpapst fan 3956 is a compact fan, suitable for the application of large air volume and medium pressure head. Air flows through the impeller parallel to the rotating shaft. Our AC and DC compact fans have a wide range of models and sizes ranging from 25mm to 280mm. Thanks to the design concept of integrated motor, the overall structure of the fan is very compact. The operating point of ebmpapst's diagonal compact fan is in a higher pressure range. The new diagonal compact fan provides larger pressure and significantly larger airflow. This makes them the perfect technology for cooling intensive applications in closely spaced components.