Sunvalley Brands offers the Vava 5-Liter Cool Mist Humidifier for $69.99. Coupon code "EJLJ343V" drops it to $49.99. With free shipping, that's $20 off and the lowest price we could find. It features an LED display, 5-liter tank, built-in filter, and three mist settings. Deal ends August 20.