HEAVY-DUTY DRUM FANS FOR LARGE COMMERCIAL AREAS – Compact enough for a workshop yet powerful enough for an industrial warehouse, the IZY-30 30-inch drum fan delivers 9,300 CFM of airflow to cool people and machinery, dry out water-damaged areas, and accelerate the curing of concrete, tile, and drywall. The rugged steel housing and rust-resistant, OSHA-compliant grilles ensure durability. An integrated handle and rubber wheels allow for effortless transport across any job site.