Simply insert your smart fragrance vial and Pura 4 automatically detects the fragrance, creating a seamless swapping experience. Adjust fragrance intensity, easily switch between fragrances, set schedules and timers, and more—all from the Pura app. Adaptive diffusion technology reads the room's temperature and adjusts according to your preferences for a consistent, reliable scenting experience. All our scents are created with clean ingredients and are safe for kids and pets. For more on what we do and don’t include in our scents, see the Pura Pro All New in boxes