Odor eliminating technology. Up to 90 days of fresh release (Per packet based on low setting). Infused with essential oil. Fits/Compatible: Glade AirWick, & Renuzit Scented Oil Warmers (For use in Renuzit Glade, and AirWick Air Fresheners). Scratch n sniff. ETL listed - Intertek. Questions? Commentaries? Call 1-866-Renuzit. Made in Mexico from domestic and foreign ingredients.