A network of Nural sensors automatically adjusts airflow and temperature to enhance natural shine and protect scalp health. When used in Scalp protect mode²In-use conditions may affect experience of pre-set temperature. Attachments compatible with Scalp protect mode: Gentle air attachment, Styling concentrator. Activating Scalp protect mode will override last-used heat settings. In Dome mode vs. diffuse mode. For use on dry and straight[ened] hair.