Large-scale coverage
The current specification sheet spans 12 to 30 feet (3.7 to 9.1 metres), with project and sprinkler-system conditions applying to the largest diameter.
QuoteCommercial & industrial HVLS
Big Ass Fans
Powerfoil X4 combines very large coverage, a hermetically sealed NitroSeal™ drive system and multiple redundant safeguards for demanding industrial projects.

The current specification sheet spans 12 to 30 feet (3.7 to 9.1 metres), with project and sprinkler-system conditions applying to the largest diameter.
High-volume, low-speed air movement is designed to create more consistent comfort across large floor areas.
SmartSense® automation, BMS integration and the ability to coordinate up to eight fans support efficient facilities operation.
Aircraft-grade safety cables, airfoil restraints, Grade 8 hardware and fire-suppression integration form a redundant safety system.
Begin the project
No fixed retail price is guessed here. Add the family to your project quote and share the building information Pacific Air needs for the first conversation.
Project specification pathway
Pacific Air will use the building dimensions, mounting height, environment and intended use to begin a proper project recommendation.
Big Ass FansYour selection
Project dimensions and site details are collected on the next step.
Application fit
Pacific Air curates by application and performance. These are broad starting points—not a substitute for checking room geometry, mounting, structure and installation conditions.
X4 or D?
For large industrial coverage, an IP56 full-fan rating and the hermetically sealed NitroSeal™ drive system.
For IP66 protection, direct-drive engineering and facilities exposed to humidity, dust, vapours or washdown conditions.
Explore DTechnical overview
A concise verified overview for customers, electricians, installers, architects and project teams. Final compatibility and installation requirements are confirmed during quoting.