The Perfect Aire 0.5-gallon ultrasonic humidifier offers an ideal solution for dry indoor air, providing fresh and healthy humidity to small to medium spaces. Designed to alleviate dry skin and allergy symptoms, it also allows essential oil use. With Micro Mist technology, cool mist, 50-hour runtime, whisper-quiet operation, and 360-degree output, this tabletop humidifier creates a comfortable, refreshing environment for your home.