Blowdryers were invented towards the end of the 19th century. The first ones were big machines that you have to sit under to get your hair dry. The handheld hairdryers appeared much later during the 1920s. A blowdryer or hairdryer is an electromechanical appliance designed to blow cool or hot air over wet or damp hair. Its main purpose is to hasten hair drying.

Hair styled using dryers usually has more volume and discipline than air dried hair. Hairdryers allow better control on hair because they accelerate the formation of temporary hydrogen bonds inside each strand that allows for stronger hair shaping. The hair style is further improved when styling products and hair brushes are used to add tension, hold and lift.