Industrial fan have 3-speed modes and the big blades provide 10% higher wind speed than the other drum fan on the market.The 3 speeds system is designed to give you flexibility to meet all your need for air circulation.With handles on the top and 2 smooth wheels at the bottom makes the fan easily to transport.360 degree adjustable tilt to provide you wide range air circulation.Our new technology with copper rotor motor and double ball bearings make the fan more durable than others. Suit for covered patios basements garages warehouse factory workshops greenhouse.