Boardwalk Metered Air Freshener Refill provide premium fragrances that create a pleasing atmosphere in any room. Each metered spray eliminates offensive odors while leaving behind a long-lasting freshness and inviting scent. Great way to discreetly freshen washrooms, trash collection areas, kitchens, lobbies and classrooms. Refill fits most standard-size metered aerosol dispensers, which are sold separately. Each refill can last 30 days in dispenser.