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 $9 below our September mention and the lowest price we could find by $20. It features a built-in aroma diffuser, 2.8-liter tank capacity, 7-color LED night light, and automatic shut-off.