Six-blade fans designed to use less power

MacroAir offers six-blade HVLS fans. The patented 6ixBlade technology uses a NASA-engineered wing design and blade-angle pattern for increased efficiency and reliability, the company reports.

The fans create the same air movement as 10 blades, but with 40 percent less power and less torque, according to the manufacturer. The fans also use 40 percent less aluminum.