What is the purpose of an exhaust system in mechanical construction?

The primary purpose of an exhaust system in mechanical construction is to remove contaminated air from an indoor environment. This is essential for maintaining air quality, health, and safety in buildings. Contaminated air can include pollutants, excess heat, moisture, and odors generated from various sources, such as industrial processes, cooking, and human activities. By systematically extracting this air, an exhaust system helps to ensure that the atmosphere remains safe and comfortable for occupants.

Effective exhaust systems also contribute to the overall efficiency of ventilation within a space. By removing stale or contaminated air, they facilitate the introduction of fresh, clean air from outside, although that is primarily the role of supply air systems. Therefore, while managing humidity, circulating fresh air, and regulating temperature are important aspects of a well-designed HVAC system, the specific function of removing contaminated air is what distinguishes the purpose of an exhaust system.