This Plugin Air Freshener provides consistent, long-lasting fragrance to any home. The user can control fragrance levels to vary intensity, with one air freshener plug in can lasts up to 80 days on a low setting. Includes : Plugin unit and refill bottle Parts. Refills can easily be swapped and replaced for new scents to define your home’s personality. Please note the diffuser base is sold separately. Extra refill bottles can be purchased. These plugins are manufactured to the highest quality and vigorously tested. They are CE Ceritified, CTS Ceritfied and RoHS certified.