What is Hair dryer?
[[File:Hairdryer 20101109.jpg|thumbnail|right|A hair dryer]] A '''hair dryer''' (when a handheld type also called a '''blow dryer''') is a device that blows cool or hot [[air]] using a [[Fan (machine)|fan]]. Hair dryers are usually used to speed up drying [[water|wet]] [[hair]]. The main parts of a hair dryer are a [[engine|motor-powered]] [[Fan (machine)|fan]] and an electrically heated element. The element heats up when an [[electric current]] flows through it. When air from the fan goes through the barrel of the hair dryer, it is heated by the element. The hot air passes out of the end of the hair dryer (the nozzle). The user can direct the nozzle towards their hair.<ref>{{citation|title=Hairdryers|page=84|publisher=Imagine Publishing|date=2011|isbn=978-1-908222-0-84|newspaper=How It Works Book of Amazing Technology}}</ref> Alexandre Godefoy created the first model of the hair dryer in [[France]] in 1890. {{Commons}} == References == {{reflist}} {{Home appliances}} [[Category:Home appliances]] [[Category:Heat]]