Does the Purest Sleep Diffuser have a white noise option? January 23, 2019 18:52 Updated No, the Purest is a sleep scent diffuser only. Related articles What does the Proposition 65 notice mean? What settings on the Duet can I control wirelessly from my mobile device? Can I use a timer smart plug with my sound machine? What is the difference between the Rohm and Hushh? How do I know which setting the Purest is on?