This aromatherapy diffuser has a retro Formula 1 design, works with solid perfume that lasts for about 15~20 days. There is also an extra plain perfume for users to add their favorite essential oil. An ionizer and fan at the bottom will generate negative ion that helps to freshen air, it works better in a car as a smoke remover or air purifier. In addition to a fragrance diffuser, the car can run at floor, becomes a perfect toy for kids.