The 533 VORNADO compact circulator uses signature energy efficient Vortex Action to move air up to 70 ft, providing whole room air circulation. Despite it’s small size, the 533 is more powerful than an 18 in commercial fan. Its compact size makes it ideal for use in an office, dorm room or cubical. Evens room temperature, eliminating hot and cold spots. The three-speed control adjusts airflow from whisper quiet to a powerful high setting for quick room circulation. Allows you to raise your thermostat up 5 deg in the summer and maintain the same level of comfort.