A handheld electric device that blows out hot air and is used to dry and, sometimes, assist in styling the hair, as in blow-drying. 2. a device for drying the hair in which hot air is blown into a hood that surrounds the head of a seated person. A hair dryer, hairdryer or blow dryer is an electromechanical device that blows ambient or hot air over damp hair to speed the evaporation of water to dry the hair. Background. A hair dryer, also known as a blow dryer, is an electrical device used to dry and style hair. It uses an electric fan to blow air across a heating coil; as the air passes through the dryer it heats up. When the warm air reaches wet hair it helps evaporate the water. There are two main parts of a hair dryer. One is a heating element which is a wire with some resistance that transforms the electric energy into heat and the other is a motor driven. Hair Stylist responsibilities include cutting hair using basic and advanced techniques, consulting customers about styles and colors and applying hair care products, like treatment oils and masks. If you have experience cutting short and long hair and are up-to-date with styling trends, we’d like to meet you. Drying has been defined as the process whereby moisture is vaporized from a material and is swept away from the surface, sometimes under vacuum, but normally by means of carrier gas which passes through or over the material Turns out, choosing the right hair dryer is more important than I previously thought. It’s no secret that heat styling products can damage hair, especially with daily use and lack of heat protection such as oils or serums. Background. Hair dryers are commonly used and can cause hair damage such as roughness, dryness and loss of hair color. It is important to understand the best way to dry hair without causing damage.