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      Hair dryer knowledge

      The simplest hair dryer is composed of two parts, a group of heating wires and a high-speed fan. When it is powered on, the heating wire generates heat and the fan rotates to generate hot air.

      Hair dryer is generally divided into two categories, one is permanent magnet hair dryer, one is induction hair dryer.

      Permanent magnet hair dryer: with permanent magnet DC motor as the power source, this kind of hair dryer has high power, low price, but high noise, suitable for people with more hair and difficult to dry.

      Induction hair dryer: mainly composed of induction motor, the noise of this kind of hair dryer is relatively small, and it is generally centrifugal wind blade, which is suitable for people with not thick hair.

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