The front of the hair dryer emits hot air and the back emits cold air. Hot air is used for styling, that is, blowing hair into the desired shape; Cold air is used for styling to make the blown hairstyle last longer. It's not impossible not to blow cold air, but it will make hair styles messy.
Attention: Don't let the hair bear the stagnant heat temperature above 80 degrees Celsius, and the temperature of flowing wind should not exceed 120 degrees Celsius. If the temperature is too high, it will destroy the fibrin of the hair and make it dry and inelastic.
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Hair dryers are mainly used for hair drying and styling, but they can also be used for local drying, heating and physical therapy in laboratories, physical therapy rooms, industrial production and artistic design.
The hair dryer is a combination of a set of electric heating wires and a high-speed small fan. When electrified, the heating wire will generate heat, and the wind blown by the fan will become hot air after passing through the heating wire. If only a small fan rotates and the electric heating wire is not hot, then wind is blown out instead of heat.
The wind blown by the hair dryer belongs to dry wind. If it is used for too long, it is easy to cause water loss and thermal damage. The secret to minimize the damage is to pat the water off your hair with a towel, then gently comb your hair with your hands, and then use a hair dryer.
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