With light therapy that can be fixed to one colour or turned off the Jo Browne Aroma diffuser uses cool mist so never gets hot. Benefits Delivers the perfect amount of scent in minutes. Essential oils can benefit your physical and emotional well being. At the touch of a button you can improve sleep, reduce stress, or lift your mood. Reduces dust in the air Spreads scent quickly throughout a room Humidifies the air and looks fabulous in any room. How to use:Plug it in, Lift up the cap. Add water to the Max line and 3 drops of your favourite Jo Browne Blends. Press the two buttons to set your desired mode. Size:160ml