RevAir is the world's first and only reverse-air dryer for your hair! The RevAir Reverse-Air Dryer uses suction to dry and straighten hair three times faster. Harnessing the power of reverse air (suction), the wand creates a reverse-air tunnel that surrounds your hair from root to tip with heated air to naturally dry and straighten your hair, without using brushes or other tools. BONUS: Less Heat! The highest setting (100 degrees less than most devices) does the same straightening work as a flat iron.