This product is a horizontal / dual ion hanging fan, light weight and functional, in addition to superior electrical performance. Its weight is the same common AC and DC ion fan half, with the exception of similar electrical properties far beyond the ordinary ion fan, long-term balance in the 5v. Hanging in the table can also be installed on the production line used to use, small footprint, in addition to electric range. Unique form of high-frequency discharge, the big difference uneven, local small space object with the same addition power has a good effect, to fill the shortage of electricity than traditional methods. With positive and negative automatic adjustment mechanism, the long-term continuous basis to maintain its superior ion balance function. Do not need regular calibration and adjustment of ion balance.