Equipped with automatic protection device for overtemperature and overpressure. Safety interlocking device: when the door is not closed, steam can not enter the inner layer and alarm. Low water level protection device: the water cannot start until it reaches high water level. With drying function, t......
Read MoreThe negative ions are different from the negative oxygen ions,which are produced by electrode and could be used for the air purifying, but the positive ions are produced simultaneously which is hazardous to the human health.However, There are five essential requisites for generation the negative oxy......
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