Some ionic hair dryers apply an ionic spray coating inside the barrel of the dryer. Due to the air speed and intense heat, this coating eventually erodes and wears off so the dryer loses its ionic and infrared ‘juice’. Others feature ion generators but this is not as powerful as Tourmaline. They do not dry as quickly and the hair is not left as healthy as a result. Most dryers (ordinary ionic, European etc.) rely on high heat and high wind speed to dry hair. High heat damages hair and high wind speed uses more energy, requires larger motors that are heavy and tend to breakdown more quickly.Here offers some brands of Tourmaline hair dryers: T3, BaByliss, HAI, Cricket and Sedu...