Iso-Max 250 2310m³
This high-quality, efficient tube fan has 2 propellers, one which rotates and one which is fixed. This combination creates a uniform airflow in the form of a jet stream. This is unlike tube fans that are driven by a single propeller. The airflow comes out as a spiral in similar devices, which is less efficient.
The uniform airflow in the form of a jet jet makes little contact with the edges of the ducting, resulting in little pressure loss, resulting in higher efficiency.
