Mechanical smoke extraction is a system designed to remove smoke and heat from buildings during a fire. It uses fans and ducts to actively pull smoke out of the affected area, improving visibility and air quality for occupants and emergency responders. This process helps to prevent smoke from spreading and reduces the risk of smoke inhalation. These systems are often integrated into commercial buildings, such as shopping malls and office complexes, and are part of a broader fire safety strategy. Regular maintenance and testing are essential to ensure that mechanical smoke extraction systems function effectively when needed.