1, the function of humidifier is to increase the moisture in the air, but it should be noted that spraying and thermal evaporation are useless, except wetting the ground. At present, ultrasonic humidifiers are popular. It uses ultrasonic high-frequency oscillation to atomize water into ultrafine particles of 1-5 microns, and diffuses the water mist into the air through a pneumatic device, so that the air is moist and accompanied by rich negative oxygen ions, which can be fresh.
2. The advantage of using humidifier is that it can replenish the lost moisture to the skin. The best way is to use it at night. Turn on the humidifier six hours before going to bed and turn it off before going to bed. Pay attention to about one meter away from the human body when using, and try to stay away from all kinds of electrical appliances.
Disadvantages of humidifier:
First, if the humidifier itself is unsanitary, germs will float in the air with water vapor, which will do harm to people's health.
Second, tap water cannot be directly added to the humidifier. Because tap water contains many minerals, it will damage the evaporator of humidifier, and the water and alkali it contains will also affect its service life. Chlorine atoms and microorganisms in tap water may be blown into the air with water mist to cause pollution. If the hardness of tap water is high, the water mist sprayed by humidifier will produce white powder because it contains calcium and magnesium ions, which not only pollutes indoor air.
Third, the inferior air humidifier is the most harmful, so when choosing an air humidifier, you must choose a regular air humidifier.
Fourth, the air humidifier cannot be used correctly. If the air humidifier can't be used correctly, all kinds of microorganisms on scattered dust and articles will multiply rapidly at a suitable temperature, and bacteria will expand, and vulnerable groups such as the elderly and children will be easily infected after inhalation;
5. Improper use of the heater can also cause "humidification pneumonia", because the air humidifier is not cleaned regularly, so that microorganisms such as mold enter the air, and the human body is inhaled into the respiratory tract, which easily leads to "humidification pneumonia".