product description:

negative ion hair dryer: negative ion hair dryer can effectively resist rough, anti-static, close hair cuticle, make the hair smooth and not rough.

water ion hair dryer: water ion hair dryer can better moisturize and care hair by releasing water ions.
wind speed: the higher the wind speed, the faster the drying speed. the wind speed of ordinary hair dryers is 10-17 m/s, while the wind speed of high-speed hair dryers can reach 20-70 m/s.
. power: the greater the power of the hair dryer, the thicker the heating wire, the more heat energy it generates, but the power is too large and not ideal. suitable power such as 1800w can provide strong wind force and fast drying effect.
. heating and cooling air: choosing a hair dryer with its own heating and cooling air can effectively avoid high temperature damage. it adopts heat balance technology, which is hot but not hot when the wind comes out, and cold but not cool.
. noise: the noise of ordinary hair dryers is about 85 decibels, while the noise of low-noise hair dryers is less than 65 decibels, providing a more comfortable use experience.