Write a summary of how a particular invention works A hair dryer is one of the most useful invetion of all the time. It was invented around the end of the 19th century. The first model was created by Alexander F. "Beau" Godefroy in his salon in France in 1890. Hair dryers are used both in beauty salons by professional stylists, and in the average household by consumers. It is an electromechanical device designed to blow normal or hot air over damp hair, in order to accelerate the evaporationof water particles and dry the hair. When turned on, electric hair dryers work by blowing room temperature air in through the vents. The air then passes over wire coils that heat it, making it able to blow the hair dry with hot air.Nowadays, hair dryers are devices used globally by either men or women. It is the easiest and fastest way to dry your hair and saving your time to prepare before going out.