Experience another element of styling control with the SMART-X Diffuser by Bio Ionic. Compatible with the SMART-X High Efficiency Dryer, the SMART-X Diffuser broadens and reduces airflow to gently dry, define and reduce frizz for naturally curly or wavy hair. BenefitsLift, shape, and enhance natural texture with gentle, dispersed airflow. Tapered fingers gently separate curls or waves to create defined texture. Compatible with SMART-X High Efficiency Dryer.