Indoor Air sciences CSMI Practice Exam

What is an effective strategy for improving ventilation in indoor spaces?

1. Using exhaust fans

2. Installing carpets

3. Curtains for light control

4. Reducing window size

The correct answer is: Using exhaust fans

Using exhaust fans is an effective strategy for improving ventilation in indoor spaces because they actively remove stale air, odors, and excess moisture from the environment. By creating a negative pressure in the room, exhaust fans encourage the influx of fresh outdoor air through other openings, thereby enhancing overall air quality. This process helps in the removal of indoor pollutants and can regulate humidity levels, contributing to a healthier indoor atmosphere. In contrast, installing carpets does not enhance ventilation; instead, they can trap dust, allergens, and moisture, potentially degrading indoor air quality over time. Curtains serve primarily for light control and privacy and do not facilitate air movement or exchange. Reducing window size can limit the amount of fresh air that can enter a space, making it counterproductive for ventilation improvement. Thus, exhaust fans stand out as an effective solution for enhancing air exchange and promoting better indoor air quality.