Vitruvi Stone Diffuser is designed out of the highest quality hand milled ceramic porcelain, these quality pieces are created to help diffuse essential oils into any environment. With longevity and safety off switches these diffusers run for hours while looking like a beautiful object that will seamlessly fit into any home. Hand crafted ceramic diffuser designed out of the highest quality porcelain. Uses ultrasonic vibrations without heat therefore keeps essential oils in full integrity and easy to clean with optional light feature. Safe device, will turn off automatically either when the time is up or when water runs out.