Ionic blow dryers have a positive ion generator connected to the power source that directs positive ions into the air stream. Positive ions are shown to help with frizz and drying times but the effect is subjective.
Tourmaline is a coating or material applied to the air output grille on a hairdryer where a similar effect happens. The material itself theoretically will emit positive ions. Ceramic heaters use ceramic heating elements where in theory, some infrared heat is emitted onto the hair. All of these technologies can provide a small improvement with a traditional blow dryer that blows hot air.
RevAir gently draws moisture out of the hair using reverse-air (aka suction) and uses very little heat to inject a small amount of warm air into the air stream. Frizz is eliminated naturally and the drying efficiency is 3X that of a blow dryer.
RevAir naturally aligns the hair strands and lays down the cuticles because of the direction of airflow and negative pressure environment inside the Wand. This negative pressure environment is also ideal for infusing nutrient rich hair products into the hair strands.
RevAir owners report that continual use of negative pressure (heated suction) to dry hair results in hair that is healthier than ever before.