HVLS Industrial Fans are really big ceiling fans that are more than 7 feet in diameter. As the name implies, these big industrial fans move a high volume of air at a low speed. HVLS industrial fans are an ideal way to keep the air moving inside a commercial or industrial space like a warehouse or factory. Traditionally, it has been difficult and expensive to cool such large spaces. An HVLS industrial fan will work efficiently to improve air comfort without the need for large-scale cooling systems. We use these industrial fans in our own shipping facilities and highly recommend them.