LEED AP Building Design and Construction (BD+C) Practice Exam

What is the required outdoor air volume for a building flush-out for IAQ Assessment?

1. 10,000 cu. ft. per square foot

2. 14,000 cu. ft. per square foot

3. 20,000 cu. ft. per square foot

4. 7,000 cu. ft. per square foot

The correct answer is: 14,000 cu. ft. per square foot

The required outdoor air volume for a building flush-out for Indoor Air Quality (IAQ) Assessment is 14,000 cubic feet per square foot of the building area. This volume is specified in LEED guidelines to ensure that any contaminants or volatile organic compounds (VOCs) released during the construction process are sufficiently diluted. Conducting a flush-out helps remove harmful pollutants from the air before occupancy, which is essential for creating a healthy indoor environment. This substantial air volume requirement reflects best practices for maintaining good air quality, especially in newly constructed buildings where dust, off-gassing from materials, and other pollutants are common. The prescribed amount helps to achieve optimal ventilation, thereby reducing potential health risks associated with poor indoor air quality. The other options do not meet the established guidelines for effective air flush-out procedures, as they provide either insufficient or excessive volume that does not align with the LEED standard for IAQ Assessment.