What is the purpose of a squirell cage?

A squirrel cage, often referred to as a squirrel cage fan or motor, is designed to provide efficient airflow in various applications, such as heating, ventilation, and air conditioning (HVAC) systems. It consists of a cylindrical rotor with blades that spins to create a high volume of air movement with relatively low noise levels. The design allows for effective cooling and ventilation by drawing air in and pushing it out with minimal resistance. Squirrel cage fans are widely used in residential and industrial settings for their durability and efficiency.