Why are periodic IAQ assessments important?

• A. To increase building operating costs
• B. To focus solely on energy efficiency
• C. To identify emerging hazards, verify effectiveness of controls, and maintain worker health and comfort
• D. To ignore new hazards

Answer: (C)

Periodic IAQ assessments focus on identifying emerging hazards, verifying the effectiveness of controls, and maintaining worker health and comfort. Over time, changes in occupancy, new materials, or shifts in how a space is used can introduce contaminants or strain the ventilation system. Regular checks reveal issues like inadequate ventilation (reflected in CO2 or particulates), moisture problems that could lead to mold, or unexpected VOC sources, so you can adjust outdoor air intake, improve filtration, fix leaks, or fine-tune humidity control. This proactive approach keeps the indoor environment safe and comfortable, supports productivity, and aligns with good building management. It’s not about merely increasing costs or chasing energy savings at the expense of health, and it certainly shouldn’t be about ignoring new hazards.