Are there performance criteria for air quality in 62.1?

• A. Yes, criteria for contaminant levels and controls to achieve acceptable IAQ.
• B. No, 62.1 focuses only on outdoor air quantities.
• C. Only for outdoor pollutants.
• D. Only in high-rise buildings.

Answer: (A)

The main idea is that ASHRAE 62.1 includes not only required outdoor air quantities but also specific criteria to ensure good indoor air quality. It defines contaminants and the limits or exposure criteria for those contaminants, along with the controls needed to keep IAQ acceptable. The standard provides a prescriptive path based on ventilation rates and filtration, and it also offers an IAQ Procedure as a performance-based approach to demonstrate that contaminant concentrations remain within acceptable levels through design and control measures. This means there are explicit performance criteria for IAQ, not just for outdoor air delivery, and they apply regardless of building type, including but not limited to high-rise projects.