Ships with HDC500 demin cartridge; $9.99 retail value. * * 2 easy ways to fill - at humidifier or at sink. * * Filter free, cool visible mist. * * Variable output control & Auto shut off when empty. * * Ultra quiet operation. * * Designed for medium-large rooms. Runs up to 36 hours per filling. * * 1.25 gallon tank capacity. * * HUL570W: White HUL570B: Black. * * 2 Year Limited Warranty. Cool, filter free visible mistWide tank opening is easy to fill, empty and cleanRotating mist nozzle for directional moisture controlVariable moisture output settingsVisible water windowUltra quiet operationNo filter requiredAuto shut off when empty