New smart vials and Puralast technology work together to efficiently fill your space with your desired intensity, making fragrances last up to 120 hours. Pair with premium fragrances created with ingredients that are safe and clean. Enjoy 2 fragrance vials for up to 6 weeks when diffusing 6–8 hours per day. Adjust fragrance intensity, set schedules and timers, and more in the Pura app. Retail Price $50