Bionaire BCM658-U Cool Mist Tower Humidifier with Permanent Filter Runs up to 36 hours on one filling; Perfect for medium rooms  up to 700 square feet AccuSet Digital Humidistat allows users to set desired humidity level for optimal comfort; Microban Antimicrobial Product Protection Filtered with Arm & Hammer baking soda; PermaTech reusable filter saves time and money; Dimensions in inches: 11.3 L x 10 W x 25.7 H Attractive Tower Design saves space; Ultra-quiet Operation Combination of cool mist technology and unique fan blade design limits noise Sturdy tank handle allows for safe and convenient transportation and handling; Dishwasher-Safe water tray