The VF300 Extractor / Ventilation fan fan is manufactured by Broughton a UK company.
These tough fans have 1.5mm steel bodies. The fan impellers are of a sickle blade design to maximise airflow throughput, with motors themselves being aluminium cased to keep the weight down and dissipate heat generated from the motors. The fan can deliver 3600 m3/per hour air flow. These fans have numerous uses such as area ventilation, fume extraction or the provision of fresh air.
You also have the option to buy 10 metres of flexible duct of 300mm diameter, to fit onto this fan.