Lovepot Humidifier Non-electric Eco-friendly Natural Evaporating Blue Made in KOREA, FREE EXPEDITE Shipping, 8 - 15 days Delivery with USPS Tracking Reinforced for maximum efficiency and longer filter life Non-electric humidifier with a distinguishing honeycomb structure made by felt Aroma solution can be dropped on a tissue ball or mixed with water. Non-electric, Eco-friendly, Natural Evaporating. A tissue ball is expendable.