The Air Innovations model AI-100 ultrasonic cool mist personal humidifier with changing LED mood light is one of the top rated and most versatile humidifiers available for its size. Key Features: Ultrasonic humidifier that runs for a full 12 hrs on low (almost 2 nights of sleep) and is completely silent when running. It’s powerful enough to add humidity to smaller rooms up to 150 sq. ft. The tank is infused with an antimicrobial inhibitor to help prevent microbial growth on the surface of the tank and base. This travel humidifier is unique because of its size and versatility. Great for home, office or travel. Additional features are an auto safety shut off, USB powered and a changing LED mood light. Great for kids and babies, this cool mist humidifier also rehydrates your skin, relieves dry eyes, scratchy throats, post nasal drip and helps reduce snoring so you sleep better. As a bonus, it also rehydrates wood furniture, cabinets, wood floors and wooden guitars.