SPT SF-615H Evaporative Air Cooler with Ultrasonic Humidifier This unit is not an air Conditioner and does not have a compressor inside 3D honeycomb cooling pad for enhanced cooling performance Functions: fan/fan + evaporative cooling/fan + evaporative cooling + Ultrasonic humidifier Auto swing louvers; computer controlled system with LED panel Three fan modes: normal, Natural, sleep; up to 12 hours off-timer