Send us an enquiry via our Contact Us page or email us at hello@air-humidifier.com. So our customer service team can help you as fast as possible, please include your order number, your full name, shipping address and reason for return/refund.To be eligible for a return/refund, your item must be returned 45 days after the purchase and at the buyers cost. The products must be in unused and in the same condition that you received it. It must also be in the original packaging.We cannot accept returns/refund on orders that have been used/opened.Please note: Air Humidifier does not refund shipping charges for returned packages.