The Alo Yoga Aura Diffuser is a luxury cool-mist humidifier and essential oil diffuser. Retails for $98 new. Has light staining inside from oils, which happens over time. Key Specifications * Water Capacity: 2.2 liters * Room Coverage: Up to 700 square feet * Run Time: Up to 22 hours of continuous operation * Safety: Includes an automatic shut-off feature and an antimicrobial water tank *also has light Design and Features * Easy Refills: Comes with a detachable power cord so you can move and fill the tank easily. * Quiet Operation: Built with quiet technology for bedrooms, offices, or yoga spaces. * Aromatherapy: Compatible with pure essential oil blends.