Bionaire BWM2600-UC Filter Free Warm Mist Humidifier Warm mist humidifier reduces static electricity and prevents drying in indoor environments; manufactured by Bionaire Shatter-resistant, dishwasher-safe water tank with microban protection to prevent bacteria growth; filter-free Runs 24 hours per tank; integrated digital control panel with 2 mist output settings Ideal for small to medium rooms; auto shutdown when tank runs dry or overheats Humidifier weighs 5 pounds upon shipping; manual included