The Rain Ultrasonic Aroma Diffuser fills your space with the scents you love. The Rain Diffuser runs up to 5-hour continuously or up to 10-hour intermittently. The modern plastic diffuser is unbreakable, which makes it ideal for families with children and pets. It also features a warm white light for ambiance. To use, add water and the essential oil of your choice, turn it on, and let the cool mist relax and recharge you.