This simple, plug-in diffuser freshens a room with natural essential oils instead of the synthetic chemicals in commercial air fresheners. No need to clean—just change the pad! Details This simple, plug-in diffuser lets you freshen a room with natural essential oils instead of the synthetic chemicals found in commercial air fresheners. Simply add a few drops to the scent pad, plug the diffuser in any outlet, and enjoy the aroma! The unit never needs cleaning; just change the reusable scent pads. Quantity: 1 plug-in diffuser and 5 reusable scent pads. Diffusion: Heat (low). Size: 1½" x 2 x 4". Directions: Place 5–15 drops of essential oil on a scent pad. Slide the pad underneath the plastic grate on the top of the diffuser. Plug the diffuser into any standard power outlet; gentle heat disperses the aroma into the air. Extra scent pads can be purchased for extended use.