Convenient air freshener is easy to use and maintenance-free as it doesn't depend on batteries, fuel cells or any other artificial means of power. Contains a molecular odor counteractant that effectively fights odors rather than merely masking them. Provides 60 full days of odor control and air enhancement. One refill cartridge covers 6,000 cubic feet. Easy-to-use as you simply twist to activate in a few seconds. Small enough to fit into most dispensers on the market.