GuruNanda Honeycomb Essential Oil Diffuser Brand New (no box) Make home scenting beautiful with the Honeycomb, our most decorative, lightweight two-in-one humidifier and essential oil diffuser. Ideal for small spaces and travel, the Honeycomb runs quietly, utilizing state-of-the-art ultrasonic wave technology to circulate perfectly moisturized air. Use it with 100% pure essential oils to enjoy the full therapeutic benefits of aromatherapy.