"Plug in" to a better air care experience. ourfreshe is the professional 30-day plug-in air freshener for larger spaces. There are no batteries required and the refills are dry so there's no spills or messy residue. One dispenser covers 250 to 500 sq ft. Easily add additional dispensers for larger spaces. ourfreshe works great in waiting rooms, lobbies, conference rooms, hallways, and more. The rotating plug, easy to read LED screen, and adjustable intensity makes it easy to install and easy use. Light activation ensures you won't waste fragrance when no one is around and a charcoal filter helps clean the air before it freshens for better user experience.