The high-pressure industrial "Nedfon" ventilating fans apply the
most updated fluid mechanics technology to 3-bladed screw propellers
designed with large angles. The high-pressure designs and unique
cylinder or semi-cylinder configurations allow the user to achieve
effective control of the high pressure in passageway walls.

Features:
1) High air pressure, large air volume, low noise, stability
2) Energy-savings, 10 - 30% lower power consumption than government
standards
3) Cast-iron motors and low-noise bearings
4) Long operational motor life
5) Up to 6,000 hours of continuous running
6) Made of superior quality thin steel plates (good rigidity, light
weight)
7) Attractive casing and easy to install
8) Single phase and 3-phase alternatives