Blow drying is a method of drying hair using a handheld device called a hair dryer. This appliance blows warm or hot air onto wet hair, helping to evaporate moisture quickly. Blow drying can also be used to style hair, creating volume or smoothing out frizz. The process typically involves sectioning the hair and using a round or flat brush to guide the hair as it dries. Many people use heat protectant products before blow drying to minimize damage from the heat. Proper technique can lead to a polished look and reduce drying time compared to air drying.