Jet Fan: Designed to remove excessive fumes, smoke, etc from one point to another with great thrust. Widely used in metro station, car park ventilation, marine engine room, chemical store, etc... Equipped with Class 'H' motor 250?C for 2 hours or 300?C at 2 hours.Thrust: 280 - 1780 N.Flow rate: 9 -65 m3/sec .