The first hair dryer was the vacuum cleaner! In early models of hair dryer, the front of a vacuum cleaner sucked air in, the back blew air out, and the hose could be attached to either end.
The first hair dryer was invented in 1920 but the size of the hair dryer was too large and heavy. In 1951 was the first really workable dryer made. The device consisted of a hand-held dryer connected to a pink plastic bonnet fitted over the woman’s head.