A fire damper is an essential piece of fire safety equipment used to prevent the spread of fire and smoke through a building. It is a device that is installed in the ducts and walls of a building to close off air flow in the event of a fire. Fire dampers are typically made of steel or aluminum and are designed to close automatically when the temperature reaches a certain level. Fire dampers are an important part of a building’s fire safety system, as they help to contain the spread of fire and smoke, and can also help to reduce the amount of damage caused by a fire. Fire dampers are required by building codes in many jurisdictions, and must be inspected and tested regularly to ensure they are functioning properly.