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Dehumidifier belongs to the seasonal use of products, if used properly in daily life, it can not only play the greatest role of dehumidifier, but also reduce the incidence of failure and prolong its service life. The following is about the correct use, maintenance and maintenance of dehumidifier methods. 1. Adjust the set humidity of dehumidifier correctly: when adjusting the set humidity of dehumidifier, the user should set the humidity according to his feeling of humidity, the number of people in the space and the size of the space. Usually in the state of less activity such as rest and sleep, the relative humidity of the room is about 60% RH, and the human body will feel more comfortable. If the humidity is set too low, in addition to making people feel dry, due to the large difference between indoor and outdoor humidity and the rapid expansion of moisture, the compressor starts and stops frequently, which shortens the service life of the dehumidifier and consumes more energy. Regularly clean the dehumidifier: regularly remove the filter screen of the dehumidifier for cleaning, which can effectively improve the dust removal effect of the dehumidifier and improve the ambient air quality. Regular cleaning of the heat sink of outdoor unit can effectively improve its heat transfer coefficient and efficiency, and improve the working efficiency of the dehumidifier. 3. Let professionals check the dehumidifier regularly: after long-term use, the electrical circuits and control elements in the dehumidifier will have different degrees of aging, which will cause serious damage to the unit and human body. Regularly let professionals check the circuit of the dehumidifier, replace the aging components and supplement the refrigerant, which can prevent the aging of components on the machine and human body It can keep the dehumidifier in good working condition. If the dehumidifier is not used for a long time, protective measures should be taken: when the dehumidifier is not used for a long time, such as in winter or going out for a long time, the dehumidifier should be covered with a protective cover to avoid the difficulty of cleaning and maintenance in the future.