Two AirVolution-D high-volume, low-speed (HVLS) fan models by MacroAir have received certification from Underwriters Laboratories (UL).
The 550 model controls temperature and humidity with blades ranging from 8 to 18 feet long, making them ideal for medium to large spaces.
Engineered for heavy-duty applications, the 780 model sports blades ranging from 20 to 24 feet to move air in extra-large spaces.


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