This diffuser hair dryer makes a great all-round styling accessory. Concentrator nozzle – For easy and precise styling. Diffuser – Great for enhancing curls. The dryer features three heat settings and two speed settings, so that you can adjust the output to suit your look, as well as a handy cool shot button which seals the hair cuticles to help set your luscious locks – giving them extra shine and longer lasting hold.