US-teck via eBay offers the 1byone 2.8-Liter Cool Mist Steam Aroma Ultrasonic Humidifier, model no. 701US-0001, for $15.99 with free shipping. That's tied with our mention from a week ago and $22 under the lowest total price we could find for a similar one elsewhere. Features include a built-in aroma diffuser, 2.8-liter tank capacity, and 7-color LED night light.