Good Sense 60-Day Air Care System features 60 full days of odor control and air enhancement inside and outside the restroom. Simple and easy-to-use-just twist to activate. It only takes seconds. Air freshener refills contain a molecular odor counteractant that effectively fights odors, rather than merely masking them. One refill cartridge covers 6,000 cubic feet, for a big, fresh feeling wherever you need it.