Aromatherapy is a powerful way to feel relaxed and refreshed, and the Essential Aroma Oil Diffuser Ultrasonic Electric Air Mini Mist Maker Humidifier does just that. This aromatherapy diffuser features a 300ml capacity for misting and humidifying your home, plus it doubles as an electric air diffuser with four different light settings. It's easy to use, too: simply add water and essential oils to the top then turn on the power button.