Head over to Amazon where you can score this highly rated URPOWER 2nd Version Essential Oil Diffuser for just $16.90 (regularly $49.99) with promo code O8RVRK2V at checkout. Plus, get FREE Shipping on an order of $49 or more OR snag FREE 2-day shipping with Amazon Prime (you can sign up for a FREE 30-day trial here). The Urpower Ultrasonic Aroma Essential Oil Diffuser is an upgraded version. The 2nd generation produces more mist than old version. An ideal way to add moist, comfortable air to small bedrooms, hotel rooms, tabletops and even workplace cubicles.