3 speed settingsEnergy efficient, high volume air movementSlip-resistant feet help prevent fan sliding for improved safety during useEach3 speed settingsEnergy efficient, high volume air movementSlip-resistant feet help prevent fan sliding for improved safety during useLasko® Box Fan, 20"http://s7d5.scene7.com/is/image/Staples/s0432381_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0432381_sc7?$thb$http://s7d5.scene7.com/is/image/Staples/s0432381/Lasko-Box-Fan-20-inch/product_368088Lasko® Box Fan, 20"1.52
I bought two of these for use in my husband's shop and while we are at shows. One of them was very poorly constructed. The fan was off center, so when we turned it on several of the blades would hit the inside wall. I had to take the unit apart and trim the blades and also had to try to bend the frame back into place. Not much power either, highest speed doesn't seem to product much more than an outside breeze.