This Honeywell Mistmate Ultrasonic Humidifier drops from $27.88 to $12 at Walmart.com. Shipping adds $4.97 or is free with in-store pick up. This is the best price we found by $11 shipped. This features a control knob, variable output settings and an auto shut-off when empty. It is available in the pictured color only while supplies last. Sales tax is charged in most states.