AIRCARE 2 gal 1200 sq ft Digital HumidifierIt's small footprint, sleek lines and digital controls make the D46 720 a perennial favorite. Our humidifiers work by adding invisible moisture to your environment by moving dry air through a saturated wick. Maintaining proper humidity levels between 30 to 50 percent 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