We provide a 90 day warranty shipped with each unit. Returns are for repairs No Refunds. Therefore, if humidifier you receive is damaged, leaking, or non-working phone us immediately at (215) 763-1024. Take a brief video clip and forward it to [email protected].  Large video send to our whatsapp (215) 866-7038. We will send a UPS return tag via your e-mail address. Place unit back in original box and no additional box. Please secure box with sealed tape. We will repair it with in 3 business days and sent back via UPS ground.