Prepare for the Indoor Air Sciences CSMI Exam with our comprehensive study guide. Learn through engaging flashcards and multiple-choice questions, complete with hints and detailed explanations. Get exam-ready and tackle your test with confidence!

Practice this question and more.


Which condition is most likely to promote mold growth indoors?

  1. High temperatures

  2. Low humidity

  3. Excessive ventilation

  4. Moisture accumulation

The correct answer is: Moisture accumulation

Mold growth indoors is most strongly supported by moisture accumulation. Mold thrives in environments where moisture is present, as it requires water to reproduce and grow. When there is an accumulation of moisture, whether from water spills, leaks, condensation, or high humidity, the conditions become ideal for mold to establish and proliferate. While high temperatures can contribute to the growth of mold, they are not sufficient on their own without the presence of moisture. Low humidity typically hampers mold growth since mold spores require a certain level of moisture in the air to survive and as such, lower humidity levels can deter their growth. Excessive ventilation can help improve air circulation and decrease humidity levels, thereby reducing the likelihood of mold growth as well. In essence, without sufficient moisture, mold cannot thrive, making moisture accumulation the primary condition conducive to mold growth indoors.