Which statement about the impact of low-VOC materials on indoor air quality is true?

• A. It reduces VOC emissions to improve IAQ.
• B. It has no effect on IAQ.
• C. It increases odors and reduces IAQ.
• D. It requires special ventilation to be effective.

Answer: (A)

Lower-VOC materials reduce the release of volatile organic compounds into indoor air, which directly lowers the pollutant load and improves indoor air quality. VOCs are a major contributor to odors, irritation, and potential health effects, so choosing products that emit fewer of these substances helps create a cleaner, more comfortable environment. Even though some off-gassing can still occur, the overall emission rate is lower, which is why IAQ improves. The idea that there’s no effect isn’t accurate, and low-VOC products don’t increase odors; they typically lessen them. Special ventilation isn’t a requirement for the materials to be effective—the reduction in emissions happens at the source, though good ventilation can still help dilute any remaining contaminants.