Freshens the air for 30 days. Versatile: Hang it from a variety of objects like stall door stop, toilet handle, etc. Also works well in standard fan cabinets. VOC Compliant: Available for sale in all 50 states. No ozone depleting ingredients. 1/10 the VOC's of most aerosols. Easy to recycle: One material versus many, no cleaning or separating needed and no harmful chemicals to dispose of. Environmentally friendly: As compared to most gel or metered aerosol air fresheners, Eco-Fresh® Hang Tags are manufactured with over 50% less energy than typical plastic steel containers.