Scent your home effortlessly with a diffuser that doesn't use water or oil. Using ultra-efficient cold air technology, this waterless diffuser imparts aroma for up to 30 days from a single scent cartridge (sold separately). Simply lock the cartridge into place, turn on and enjoy. Tailor your experience with your choice of five scent strengths and two run-time settings. The matte off-white ceramic vessel has a sleek design that blends in seamlessly with your decor.