Diffusers turn water and essential oils into a very fine mist for aromatherapy purposes. Aromatherapy is useful for pain relief, mood enhancement, increased cognition, meditation practices, treating common colds, and more The GreenAir Scent Pod Essential Oil Diffuser is compact and unique for maximum portability. It has a silent internal fan, does not require any water, and can be operated using 2 AA batteries or a wall or car charger with its included USB adapter. This diffuser is not only great for travelling and convenience, it is also one of the least expensive functional diffusers on the market. Get yours and start enjoying the benefits of aromatherapy today, wherever you are or are going!