Which system is critical for maintaining air quality in a facility?

Ventilation is the system that plays a crucial role in maintaining air quality within a facility. It is responsible for the exchange of indoor air with outdoor air, which helps to remove pollutants, excess moisture, and unwanted odors while providing fresh air for occupants. Proper ventilation is essential to ensure a healthy indoor environment and prevent the buildup of harmful substances such as volatile organic compounds (VOCs), carbon dioxide, and other contaminants that can negatively impact health and comfort.

While insulation, drainage, and heating contribute to the overall functioning of a facility, they do not directly focus on air quality management. Insulation primarily deals with temperature control and energy efficiency, drainage is related to water management and removal, and heating is for temperature regulation. These elements are important for creating a comfortable environment, but they do not address the critical need for fresh air circulation and contamination removal as effectively as ventilation does.