Set it and forget it. Effortlessly fill your home with your favorite essential oil. Our stylish and easy-to-use passive scent diffuser absorbs oil through a PET Wick. Delicately fragrance your home all day until the oil evaporates and the scent fades. The base of the diffuser can hold 5, 10, or 15ml bottles of essential oil. Using some essential oils in your passive diffuser may cause discoloration of the ceramic over time.