Green Lion Fragrance Refill for Green Lion Fragrance Diffuser Black holds 160mL of the Fresh Ocean Wood scent, a soothing aroma that lasts a long time. The fragrance is made up of top citrus and ocean notes, middle lavender and vetiver, and sandalwood as the base, which makes it ideal for use in a car or home. For the best results, keep it in a cool, dry area.