2-in-1 design: Can help to add humidity to the air and diffuse your favourite essential oil fragrances so your space is lightly scented. Aroma diffuser: Get a home humidifier and essential oil diffuser! LED: The colour-changing LED light creates subtle mood-lighting. How to use: Simply add 130ml of water to the built-in tank before adding 3-5 drops of your favourite essential oil if desired - it breaks the water and oil solution into fine micro-particles which turn into mist emissions in the air. Three designs: Choose from brown, beige or white. Features: Can be run from any USB port, is whisper quiet and features an automatic shut off function, making this humidifier safe for night-time use. | Aroma Diffuser | Wowcher