Anjou Naturals via Amazon offers the Anjou Essential Oil Ultrasonic Aromatherapy Diffuser Humidifier for $18.99. Coupon code "WC56VHST" cuts the price to $17.99. With free shipping, that's $12 off list and the lowest price we could find, although we saw it for $6 less in November. It features three lighting modes, four timer settings, and auto shut off. Deal ends April 30.