HVLS fans from MegaFan Technologies are the ideal means to efficient ventilation. They continuously mix incoming fresh air with stale air, thus minimizing the total amount of ventilation required to achieve adequate air quality. No other commercial fan, system or ventilation technology does this better. 

Reducing the volume of air needed for ventilation reduces the number of high-speed exhaust fans needed-in some cases eliminating them altogether-cutting fan power consumption by up to 90%.

Minimizing the volume of air needed for ventilation minimizes the loss of warm (or cool) air, reducing on-going heating (or air-conditioning) costs.