LUFT Car Diffuser is designed for car drivers who are natural aroma lovers. With its simple and friendly design, the users can easily add essential oils with a piece of diffuser porcelain, which has good capacity of absorption and diffusion. When using it, hold the car diffuser horizontally, add moderate amount of essential oils on the surface of the porcelain. The essential can be fully absorbed in seconds, then place the LUFT diffuser at car AC vent clip. All the LUFT car diffuser contains 2 diffuser porcelains, which can be replaced when the smell of essential oils are changed. Two color choices are provided : grey and pale pink.