Winix Ultrasonic 0.6-Gal Cool Mist Humidifier

This humidifier has a 30-hour runtime with adjustable mist levels and a user-friendly top-fill design. It also features automatic shutoff when low on water and a colorful on/off nightlight. The price drops from $59.99 to $24.99. Shipping is free for prime members, or it adds $6.