Adjust airflow with the dial tailored to your style and hair needs. For high airflow, keep all vents open. Close some for targeted, softer flow. Fingers extend to the scalp, drying roots and adding lift. Adjustable airflow control Extended fingers for root drying Fits 10X Ultralight, PowerLight™ Pro-Dryer, and Gold Pro Speed Dryer. Max airflow with all vents open. Dial back for reduced flow.