When purchasing a hand dryer, consumers should decide which hand dryer to buy based on their own needs and circumstances. The PTC type hand dryer, because the power of the PTC heating changes with the change of the ambient temperature, the heating power of the PTC increases in winter, and the temperature rise of the warm air blown by the hand dryer also increases. The electric wire type hand dryer is simple and practical, and has a long service life. Consumers can also choose a wind-type hand dryer that is supplemented by wind-based heat, or a hot-air hand dryer that is mainly based on heat. When selecting an electromagnetic induction type hand dryer, it should be noted that such a hand dryer is susceptible to the environment and articles. It is necessary to pay attention to the selection of infrared sensor type hand dryers. Infrared sensor type hand dryers are also susceptible to light interference. Consumers should test the machine when purchasing, and select hand dryers that are not easily disturbed. You should also pay attention to the type of motor used in the hand dryer. There are many types of motors for hand dryers, such as capacitor asynchronous motors, shaded pole motors, series-excited motors, DC motors, and permanent magnet motors. Capacitance asynchronous motors, shaded pole motors, and DC motor driven hand dryers have the advantage of low noise, while series-excited motors and permanent magnet motor-driven hand dryers have the advantage of large air volume, and now the latest brushless DC motors are combined. With the above characteristics, the noise is small and the air volume is large, which has become the best choice for the hand dryer.
First, the hand dryer is fast, environmentally friendly and energy-saving. The hand dryer is based on the wind and the heating-assisted hand dryer. This type of hand dryer is characterized by high wind speed, which quickly blows off the water on the hand, and the heating function is only to maintain the comfort of the hand. The wind temperature is usually between 35-40 degrees. There is no burning sensation while quickly drying your hands.
Second, the main parameters of the hand dryer:
1, the shell, the shell material not only determines the appearance of the hand dryer, unqualified materials may become a fire hazard, the better dry hand shell is usually ABS flame retardant plastic, metal spray paint, and engineering plastics.
2, weight, mainly to consider the installation location and materials have enough capacity to withstand the weight of the hand dryer, for example: cement brick wall can generally not consider the weight problem, as long as the installation method is appropriate, this is not a problem, but if it is color Steel and other materials should consider the bearing capacity problem, but some manufacturers of hand dryers provide brackets to solve such problems.
3, color, color is mainly the problem of personal preference and the overall environment, there is a food factory, pharmaceutical factory, etc. try to choose the material color of the hand dryer, because the spray hand dryer may have volatilization, will affect food or medicine Safety
4, the start mode, usually manual, infrared induction two ways, now the new start-up mode photoelectric type, characterized by fast start-up speed, not easily affected by the environment, such as strong light may cause the infrared dry hand to keep turning or start Photoelectricity is activated by blocking the amount of light entering, thus preventing the problem of the infrared hand dryer, and also does not touch the hand dryer by hand, thereby preventing cross infection.
5, sensing position, you can choose according to your needs
6, working mode, hanging wall, bracket, according to their own needs, often move to recommend bracket
7, working noise, usually the smaller the better
8, dry hands, the shorter the better
9, standby current, the better the better
10, the wind temperature, according to their own needs and choose the type of hand dryer, usually choose long-term operation without burning sense is appropriate
Third, procurement advice:
When buying a hand dryer, don't just look at the price of the hand dryer itself. Some hand dryers are very cheap, but they are hard to control the power consumption. Therefore, we should try to buy low-energy products. The low-energy consumption is characterized by short drying time and relatively low power. It can be calculated by one calculation, energy consumption = power * time. Also try to see the product in person, and then try to buy it. Now many small hand dryer manufacturers use hand dryers made of inferior materials, and the shell deformation occurs after continuous use for a long time, which has serious fire hazards.
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