Increase the amount of moisture in the air with this Eva ultrasonic humidifier. Extra moisture can help to make life a little more comfortable. 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.