-Produces active oxygen: the negative ion is generated by ionization of high voltage in air. It is also called active oxygen -Clears air: anions of negative charge can neutralize with the soot and dust of positive charge floating in air, resulting in the natural subsidence of them -Reduces radiation: negative ion combined with positive charge in air to reduce static radiation -Improves pulmonary function: with the anions being absorbed, lung absorption of oxygen will increase by 20% and the exhaustion of carbon dioxide by 15% so to improve the blood circle and pulmonary function -Prevention of air conditioner disease: improves body reaction capacity and mobilizes reticular sebaceous gland function as well as relieves fatigue and effectively prevents diseases arising from air conditioner -Disinfection function: we use the sterilization and disinfection of ozone without any second pollution or side effect