. Benefits: Long lasting - Puralast provides a long-lasting fragrance experience of up to 120 hours. Safe & clean scents - Pair with premium fragrances created with ingredients that are safe and clean. 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. Automatic vial detection - Simply insert your smart fragrance vial and Pura 4 automatically detects the fragrance, creating a seamless swapping experience.. Key Notes: Top - citrus. Middle - tropical fruits. Base - vanilla. The iconic, cult-favorite scent with the perfect blend of tropical citrus and sugary notes.. Includes: Pura 4 Smart Fragrance Diffuser (1 ct). Capri Blue Volcano Fragrance refills (0.3 oz x 2).