Create voluminous curls with ease with the Bio Ionic Universal Diffuser. Fitting all Bio Ionic Hairdryers, excluding the travel-sized dryer, this heat-resistant and lightweight diffuser features 12 air outlets that allow for faster drying time and more curl separation. Allowing controllable hair flow, the Bio Ionic Universal Diffuser features a turn dial to adjust the airflow on your diffuser. With all vents open, a higher airflow will come through the diffuser, or close some vents to create a more targeted, lower flow drying experience.
Keep all vents open for increased maximum airflow. Turn the dial to lessen airflow.