LEED AP with Operations and Maintenance (O+M ) Practice Exam

Which of the following is a measure to enhance indoor air quality in mechanical ventilation systems?

1. Using air fresheners

2. Proper ventilation design

3. Increased window opening

4. Using artificial lighting

The correct answer is: Proper ventilation design

Proper ventilation design is crucial for enhancing indoor air quality in mechanical ventilation systems. By ensuring that ventilation systems are thoughtfully designed to provide adequate air exchange and filtration, contaminants and pollutants can be effectively reduced. This involves optimizing airflow rates, ensuring the right balance between supply and exhaust air, and selecting appropriate filters to capture airborne particles and irritants. Good ventilation design also facilitates the distribution of clean air throughout a space, prevents the buildup of moisture and mold, and helps maintain comfortable temperatures. This contributes significantly to the overall health and comfort of building occupants. Other methods, such as using air fresheners, might temporarily mask odors but do not improve the actual air quality by removing contaminants. Options like increased window opening can enhance air exchange but are often not as reliable in maintaining consistent indoor air quality as a well-designed mechanical system. Similarly, using artificial lighting does not impact air quality directly; it is more related to providing visibility and aesthetic value within a space. Thus, proper ventilation design stands out as the most effective measure among the choices provided.