GLOBALLY TRUSTED BRAND- Built with Caterpillar's high-quality standards and backed by a 3-year product warranty, this fan delivers optimal performance and long-lasting durability CETL certified and OSHA safety standards compliant. HIGH AIR VELOCITY - Variable speed circulation allows high air velocity; pushes air 3x's farther than traditional fans with patented grill design that provides strong air movement that moves 24300 cubic feet of air per minute Full Range Speed Control - Rotary Dial 25 Foot Cord and High Power DC Motor for Energy Savings POWER: 120V, 60Hz 4-Wheeled Lockable Casters for Easy Movement Product dimensions: 23.5"L x 49.5'H x 44'W