Simplicity is key in the AirVolution-D3 large industrial ceiling fan. The three-blade design reduces weight, friction, and raw materials, which in turn minimizes the strain on the building, your energy consumption, and your budget. But can three blades do the job? Yes! Just like a wind turbine, we designed the AirVolution-D3 to be the optimal balance between weight, materials, and efficiency. AirVolution-D3 now features Guardian Drive for advanced performance and circuit protection to withstand even the harshest industrial environments.