After entering September, the autumn is much obviously. The crisp autumn days can not only make people feel more comfortable, but also the air and skin can obviously feel dry, especially in the northern cities. As the temperature gradually lower, the air becomes more and more dry, not only the skin need moisture, respiratory tract will cause all kinds of diseases because of dry, whenever a lot of people will take out the humidifier to increase humidity to indoor air, although some humidifiers spit out a lot of fog, but the indoor humidity really increased?

Throughout the humidifier market available products, mainly using ultrasonic and cold evaporation two major humidification technology. In contrast, the ultrasonic humidifier except Dyson general price is very low, this kind of products can see water into fog to the indoor, but higher requirements for water quality, improper use will harm health, every winter often see "humidifier pneumonia" reported, this is basically caused by improper use of ultrasonic humidifier. In terms of safety, everyone in ultrasonic humidifier best use pure water, can reduce the occurrence of scale, also need not worry about PM2.5, of course, using pure water also virtually increased the subsequent use costs.

And cold evaporation humidifier overall price is higher, but can't see the fog in humidification process, as if moisten silently increase indoor humidity, neither because near the humidifier fog damaged furniture too much, also not because of water quality problems, general cold evaporation products can use tap water, late use cost is smaller. And humidification quantity, the most important index to measure the humidification efficiency, the ultrasonic humidifier humidification amount is generally small, compared with the cold evaporation humidifier, the efficiency is much lower. Therefore, we buy a humidifier must not be cheap.