The AUV20AWHT is one of our newest AIRCARE tabletop units. This cute tabletop ultrasonic humidifier is efficient in both size and moisture output. Ultrasonic humidifiers atomizes water into ultra-fine particles using the principle of ultrasonic high-frequency oscillation, and diffuses the cool water vapor into the air. Features a seven color LED night light that can be set to cycle through all colors or set to your favorite color and has a aroma diffuser tray for your favorite oil or water based aroma. Maintaining proper humidity levels between 30-50% in your home/office/workplace has been scientifically proven to help prevent the flu and allergies. Proper humidity hydrates your skin, alleviates dry eyes, scratchy throats and can reduce snoring. With a doctor's approval, increased humidity can reduce asthma and allergy symptoms. It also protects fine furniture, musical instruments, collectibles and wood floors. Proper humidity makes you feel warmer allowing you to lower your thermostat setting which will save money.