Hair dryer+wire+air duct = hair dryer 1: hair dryer is broken 2: wire is burnt out 3: air duct is closed, which is mainly used for hair drying and styling, but it can also be used for local drying, heating and physical therapy in laboratories, physical therapy rooms, industrial production and artists. According to the type of motor used, it can be divided into AC series excitation, AC shielding electrode and DC. ...