Talk:Vdu

VDU is also short for Vertical Discharge Unit. This is a device mounted usually on a roof on top of the ducting of a commercial kitchen extractor hood.

Its purpose is to facilitate air discharge in an upward direction to allow better dispersal of pollutants contained in the air. This is to reduce the effects on surrounding neighbors of grease particulates settling on their property.It also prevents foreign objects, debris and birds entering the ducting and possibly causing damage to the fan unit. A VDU can also have built in sound attenuation to reduce noise pollution. VDUs are generally constructed from fiberglass, galvanized mild steel, stainless steel or a combination of the three. Veryunstable (talk) 20:08, 24 August 2008 (UTC)