The Xiaomi Water Ionic Hair Dryer H500 uses double water ions which are deeply penetrated into your hair for lasting protection and a smoother shine. With tens of millions of negative ions, this hair dryer can keep the natural moisture in the hair while also effectively reducing split ends and frizz, thus improving hair strength and making it more resilient. The built-in condenser condenses the moisture in the air and two needle-shaped motors rapidly atomize it into tiny negative water ions.