This SPT SF-614P evaporative air cooler utilizes an endothermic reaction and a honeycomb cooling pad to absorb the moisture and heat in your home and release cool air, so you can stay comfortable while saving energy. Three fan speeds offer customization.Note: This unit is not an air conditioner and does not have a compressor or condenser inside. Evaporative coolers are designed for spot cooling and will not lower a room's ambient temperature. This unit is best used in dry climates or open spaces. Keep a window or door open to limit the rise of humidity and for better ventilation. Add ice to the tank and set the unit near you for optimal results.