This is a waterless and portable Aromatherapy Nebuliser, so that you can fill the air of any space you want with the wonderful scent of your favourite essential oil. The essential oil diffuser can be used in your house (living room, bedroom, kitchen, bathroom), office (desk, meeting room, waiting room), retails store, or even in your car. It’s time to say goodbye to any bad smell and feel the calming effects and psychological benefits of essential oils while you’re sleeping, relaxing, working, exercising, doing yoga, or driving! This Aromatherapy Diffuser just may be the most practical diffuser on the market as you can carry it around with ease, and use it anywhere and anytime you want! Our portable nebuliser works with a rechargeable built-in lithium battery that you can easily charge using a USB cord with your computer, power bank, or car charger. The long lasting battery has a 2-hour automatic power off technology, so if the aromatherapy nebulizing machine keeps running without oil, there won’t be any safety issues.