The heat of the air can mainly come from the air, so the energy consumption depends on the temperature of the surrounding environment, the higher the temperature of the surrounding environment, the less electricity will be used, the surrounding environment temperature is relatively low power consumption will be relatively high. Noise, air can run when the sound is relatively low generally in 40 ~ ~ ~ 60 decibels or so. Installation location, it is best to install in the balcony, for example, this more ventilated place.