Humidifier purchase points

　　Fog and no fog

　　Try to choose a fog-free humidifier, if it is a particularly dry place, you can choose a fog humidifier.

　　The fog-free humidifier sucks in dry air, passes the air through the humidified evaporative filter element inside the body, and then blows the humidified air out. The advantage is that it is clean and humidified, there is no white powder pollution, and there is no requirement for water quality. Generally, tap water can be used.

　　There are two main ways of fog. One is to use ultrasonic high-frequency vibration to atomize water into ultrafine particles of 1-5 microns; the other is to generate water mist by heating, and then transport the water vapor through a fan. The mist humidifier has high requirements for water quality. The impurities and bacteria in the water will enter the air with the water mist, affecting the air and endangering human health. So need special attention.

　　noise

　　General humidifier noise is about 30 decibels.

　　Evaporator life

　　For direct evaporative humidifiers, the evaporator is the component that has the greatest impact on performance. With the continuous use of industrial humidifiers, the efficiency of the evaporator will continue to decrease, and the amount of humidification will continue to decrease. When the humidification capacity of the humidifier is less than 50% of the original, it is considered that the humidifier has failed. The evaporator needs to be replaced.

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