Air Wick Scented Oils Plug In Air Freshener Warmer adds a consistent long-lasting fragrance to your home. Plug in the scented oil warmer and enjoy the advanced design that allows you to adjust the fragrance to the level you desire. The Plug In Air Freshener Warmer's sophisticated look complements your home dcor. It comes with a rotating plug for horizontal and vertical outlets and leaves the second outlet free. It is easy to replace any empty oil cartridges with new Air Wick Scented Oil plug in air freshener refills.