EUC Pura 4 Smart Fragrance Diffuser with 2 scents, Cranberry Fizz and Rest. The Pura 4™ smart fragrance diffuser uses innovative smart features paired with premium, clean scents to give you the most modern, customized, and high-end scenting experience possible. Safe & clean scents Pair with premium fragrances created with ingredients that are safe and clean Long lasting Puralast™ provides a long-lasting fragrance experience of up to 120 hours Smart features Adjust fragrance intensity, set schedules and timers, and more in the Pura app Adaptive diffusion Get a consistent scent experience based on the temperature in your home