A hair dryer uses an electric heating wire to heat the air and, in conjunction with a fan, blows out hot air, which can quickly evaporate moisture from hair and achieve the purpose of drying hair. Generally speaking, high-speed hair dryers with a power of 1500W-2000W and above have strong wind power, with wind speeds usually reaching 15m/s or more, and faster drying speed.

Can be combined with tools such as combs to create various hairstyles, such as straight hair, curly hair, and fluffy hair, through different air supply angles, wind speeds, and temperatures. Some hair dryers are also equipped with accessories such as collection nozzles and diffusion nozzles, which can better meet different styling needs.

Many hair dryers have negative ion function, which releases negative ions during operation, neutralizes positive charges on hair, reduces static electricity generation, makes hair smoother and more comfortable, and can also close hair scales, lock in moisture, and make hair more shiny.