24/7 odor protect technology. Up to 60 days (based on low setting) of freshness. Nothing but the ingredients you need. Great fragrance. No added water. Free from phthalates, acetone. Helpers: C13-14 isoparaffin, carries the fragrance. Butane, hydrofluorocarbon 152a, propane. Propels the fragrance. www.airwick.com. For More Ingredient Information: Visit www.airwick.com. Questions? 1-800-228-4722. Reduced carbon footprint with less water (vs. previous formula manufacturing process). Environmental tips: Please when empty. This steel can is recyclable.