An air handler stand box is a device that is used to regulate the air flow in a space. It is typically used in commercial and industrial buildings to provide a controlled environment. The air handler stand box is typically mounted on the ceiling or wall and is designed to be easily accessible for maintenance and repairs. It contains a blower, filter, and other components that help to regulate the air flow in the space. The air handler stand box is responsible for providing the necessary air flow for the building’s heating, ventilation, and air conditioning (HVAC) system. It helps to ensure that the air in the space is at the desired temperature and humidity levels. The air handler stand box also helps to reduce energy costs by regulating the air flow and ensuring that the HVAC system is running efficiently.