This diffuser is a beautiful way to scent your space naturally. You can keep it at home or at work. It gives you the flexibility to change up and customize the scent to suit your mood. This ultrasonic diffuser is a classic, elegant addition to any space with a strong, 3-hour continuous mist and a beautiful, gradient lighting effect. Simply add several drops of your choice of Dejaci Home Fragrance to the water for an instant aromatic environment. The Mogu diffuser further supports your sensory experience with its color-changing lights. – Water Capacity: 50 m – L (1.69 fl oz) Coverage Area: Up to 100 sq ft – Continuous Operation: Up to 3 hours – Light Modes: Rotating or freeze color – Automatic safety shut-off.