COOL AS A CUCUMBER: Keeps a room, home, bedroom, apartment, dorm or garage that is approximately approximately 15 inches x 20 inches and keeps the room pleasant and comfy during the summer months when the heat sets in. Works in double hung or sliding windows only, no crank windows DESIGN ENGINEERING: Vertical motion creates a steady and powerful airflow that provides consistent temperature in any room in the house. Slide out filter that rinses easily under a faucet for a fresh air feel. 4 caster wheels included for easy movement and compact portability TOP TECHNOLOGY: Enjoy the simplicity and precision of programmable, electronic controls and the clarity of an LED digital display and a 24 hour on/off timer and sleep mode. 115 volts, 950 watts and 60Hz.Operating Condition : Room Temperatu