The advantages of the series blower are large starting torque and high speed, which are suitable for manufacturing high-power blowers; the disadvantage is that the noise is large, and the commutator has certain interference to telecommunications equipment. The advantages of shaded-pole hair dryers are low noise, long life, and no interference to telecommunications equipment; disadvantages are low speed, poor starting performance, and heavy weight. The advantages of permanent magnet hair dryers are light weight, high speed, simple manufacturing process, low cost, high quality and low price.

Although there are many types of hair dryers, the structure is similar, and they are all composed of shell, handle, motor, fan blade, electric heating element, wind shield, switch, power cord and so on.

the hair dryer is mainly used for heating and blowing hot air from the fan. If you want your hair to dry quickly, it should not be too hot. The main reason is that the fan has a big wind. The wind of the fan is large, and the power is certainly not small; under the same power, the wind with small loss is greater.
With the improvement of living standards, hair dryers are not only for drying and styling hair, but more and more requirements are not to damage the hair, and even to care for the hair. The previous hair dryer has hot and cold air, but no other functions. If you buy it again, I hope that there will be more additional functions to improve the quality of life.

In order for the hair dryer to be effective in drying and shaping, to be used correctly and safely, and to extend the life of the appliance, the following matters should be paid attention to when blowing:
(1) The blower must be used under the power supply voltage specified on the unit rating. For the hair dryer with a three-wire power cord, the grounding wire should be connected correctly.
(2) When using the hair dryer, the air inlet and outlet must be kept unobstructed, otherwise the effect will not be achieved, and the appliance will be burnt out due to overheating, most of hair dryer now have a themostat cut-off device to protect the unit from over-heating .
(3) When it is used to dry wet hair, the air outlet of the hair dryer should be at a certain distance from the hair (not less than 50mm) to prevent clogging of the air outlet and scorching the hair. At the same time, avoid the water vapor generated when drying hair affects the insulation strength and cause leakage, so keeping a certain distance is important for safety.
(4) Before using the hair dryer, try to switch the hair dryer from "hot" to "cold" first, so as to cut off the power supply of the heating element first. Then let the remaining heat of the electric heating element be blown out with the help of cold wind, so that the internal temperature of the hair dryer is lowered, and then all the power is cut off. This can slow down the aging of the internal insulation of the hair dryer and prolong the service life. At the same time, it is not easy to burn other objects when placed on the table.
(5) The hair dryer should not be used continuously for too long as much as possible, and should be used intermittently to prevent the heating element and motor from overheating and burning out. The hair dryer should be placed in a dry place when it is not in use, and should not be placed in the open or humid place. When taking it out after a long period of use, the insulation resistance should be checked first, and it can be used normally when it meets the requirements to ensure personal safety during use. Due to the dust in the air, although many hair dryers are equipped with filters at the air inlets for protection, they cannot prevent dust with very small particles, and not all hair dryers have filter cloths. For this reason, dust must be cleaned regularly to prevent blockage of air ducts and damage to components.
(6) Do not throw the hair dryer at will. The heating element and motor will be damaged due to mechanical impact. At the same time, do not disassemble it easily to avoid damage to the components. In order to ensure the normal use of the hair dryer, the bearing part and other rotating parts of the motor should be filled with lubricating oil regularly, but the amount of oil should not be too much, so as to avoid flowing into the coil and causing malfunction.