81.5.......but check out this fan I bought today, the head can rotate 90 degrees, and it has an auto swivel option. It is wall mountable w/ 3 speeds, and moves a ton of air.....for those who have tank rooms, or basement sumps this is an incredible fan. Picked it up at target for only $15.
Honeywell High Velocity Oscillating 7" turbo table fan.
here's a pic: