DESC: Provides up to 14 gallons of output per day. Humidifies up to 2900 Sq. Ft.. Digital control allows you to monitor the humidity level. Auto setting allows you to set target humidity. Equipped with two patented side-fill bottles. Equipped with a built-in humidistat auto shut-off refill indicator and also a check filter indicator. The three speed motor has a whisper quiet nighttime setting. Humidifies Up to 2 900 Sq. Ft. Digital Control Allows You to Monitor The Humidity Level in Your Home. Auto Setting Allows You to Set a Target Humidity. Two Side-fill Bottles That Are Easily Removable and Patented. Uses 4 each HDC-12 wicks (included). 3 Sp Motor. Humidistat. Auto Shutoff. Auto Dry Out. Refill Indicator Lights. Check Filter Indicator. E-Z Roll Casters. has wick filters in the inside only. There is no pre filter etc.