Mia, an ultrasonic aroma diffuser, is a discreet addition to your home. With an extremely small footprint she is able to add a delightful scent to your space, taking up little room on your table or desk. Lasting 10 hours between refills, Mia doubles the run time of typical diffusers. Use your favorite pure essential oil best suited for mood or aromatherapy needs. Designed by Swiss designer Fabian Zimmerli for Stadler Form.