The Dyson Airstrait dries and straightens hair simultaneously. Take hair from wet to a finished look - with one machine. Style from wet. Straighten and dry hair - at the same time. Three pre-set temperatures -- 175°F,230°F, and 285°F - take your hair from wet to finished style, with one machine. Refresh from dry Touch-up or refresh your style from dry. Style at 250°F or 285°F or use the optional Boost mode for maximum styling impact. Intuitive airflow Airflow when you need it. Your machine senses when hair is between the arms and automatically drops to low airflow when it's not - for quieter, more efficient styling Intelligent heat control Glass bead thermistors, located in the machine arms, regulate airflow temperature up to 30 times per second, to prevent heat damage and protect hair's natural shine. 1.When used in wet to dry mode. 2.When used in wet to dry mode vs. hot plate straighteners which operate with extreme heat. 3.When used in wet to dry mode Vs. unstyled, untreated hair. Brand New Condition New In Box