Greenland 4L Stainless Steel Steam Warm Mist HumidifierPure Warm Mist: Boils water to release steam; up to 212F high temperature steam; produces cleaner warm mist with lower water quality requirements; reduces dust common in ultrasonic humidifiers; ideal for families with children, elderly, or pets sensitive to air dryness Rapid Humidification: Begins mist production in 30 40 minutes of operation; delivers a maximum 500 mLl h output with a 4 liter capacity; covers up to 500 square feet; offers standard,