The all new Powerfoil X is built for hard-working, industrial space and rangesin size from 8 to 24 feet, using its size and patented aerodynamic design to optimize airflowover large areas. Its unique NitroSeal Drive is filled with nitrogen and sealed for life to ensurezero moisture , zero contamination and zero maintenance. Prewired, onboard controls reduce electrical noise and allow for easy and less costly installation. The fan has the ability to integrate VESDA smoke detection, lighting, speakers, motion sensor systems, and security cameras.