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What's the difference between a negative ion hair dryer and an ordinary one?
The difference between negative ion hair dryer and ordinary hair dryer lies in the difference of internal device and working principle.

The negative ion blower is mainly equipped with a negative ion generator and a semiconductor refrigeration device, which can generate negatively charged ion particles and water vapor particles when the blower works. An ordinary hair dryer consists of a set of electric heating wires and a small fan running at high speed. According to the design, the negative ion fan has a special mesh line, and the blown wind carries negative ions and neutralizes the positive charges that often exist in the hair, thus smoothing the messy hair and making it smooth.

Ordinary hair dryers directly rely on motors to drive rotors to drive blades to rotate. When the blade rotates, air is sucked in from the air inlet, and the centrifugal air flow thus formed is blown out from the front nozzle of the punch. When air passes through, if the heating wire installed on the heating bracket in the air nozzle has been electrified and heated, hot air will be blown out. If the selector switch does not energize the heating wire, it will blow out cold air, which is also the purpose of drying and shaping the blower.

Working mechanism

Positive ions and negative ions in the air can be divided into large, medium and small ions according to their mobility. Small ions, also known as light ions, are beneficial to human body and have good biological activity. Only small ions or small ion groups can enter the body.

Positive ions and negative ions in the air can be divided into large, medium and small ions according to their mobility. The ion mobility greater than 0.4cm㎡/(v. s) is small ion, the ion mobility less than 0.04/(v. s) is large ion, and the intermediate ion is in between. Charged atomic groups or molecular groups close to molecular size belong to small air ions. These small air ions move fast, collide with each other in the atmosphere, and constantly gather to form large ions or middle ions.

The moving speed of ions under the action of electric field with unit intensity (V/m) is called ion mobility, which is an important parameter to distinguish the diameter of ions to be measured. The smaller the diameter of air ions, the faster their migration speed. Ion mobility is an important parameter to indicate the size of the measured ions. Ion velocity is inversely proportional to ion diameter, while ion mobility is directly proportional to ion velocity, so ion mobility is inversely proportional to ion diameter.