. Features: Long lasting - Typical Pura 4 users experience up to 45 days of premium scent when diffusing 2 fragrance vials for 68 hours per day. Automatic vial detection - Simply insert your smart fragrance vial and Pura 4 automatically detects the fragrance, creating a seamless swapping experience.. Smart features - Adjust fragrance intensity, set schedules and timers, and more in the Pura app. Pura fragrances are thoughtfully designed to never include harsh chemicals.. Refill for the Pura 4, Pura Plus, and Pura Mini Smart Fragrance Diffusers. Fragrance Family: Create a moment youll remember forever with warm, tempting notes of raspberry, jasmine, and toasted praline.. Heart racing. Breath shortening. Soul stirring. Every moment is made a little sweeter with a sophisticated gourmand fragrance that warms and delights.. Rich, musky jasmine is balanced by swirls of sweet raspberry, while toasted praline adds a coziness and depth that will bring hopeful, playful feelings to every space.. Key Notes: Top: raspberry. Middle: jasmine. Bottom: toasted praline.