1. Plasma technology Adopting plasma solo patent technology, it can produce both positive ions and negative ions. 2. Air purification: the positive ions and negative ions mix with smog and dust in the air, make the air clean. 3. Disinfect and kill germs: the ion contacts with the bacteria, germs and breaks the cell membranes, as a result, the particle will not be toxic any longer. 4. Prevent diseases: ions can improve the blood running cycle and pulmonary function, recover from fatigue and prevent disease. 5. Fragrance function: add aromatics or lentinus edodes oil, to make fragrance in car, produce the romance.