What is the primary purpose of conducting air sampling in contaminated ventilation systems?

Conducting air sampling in contaminated ventilation systems primarily aims to determine the location and extent of the contamination. This step is crucial in mold assessment, as it helps identify specific areas within the system that may harbor mold spores or other contaminants. By pinpointing where the contamination exists and understanding its scope, assessors can make informed decisions on remediation strategies and ensure that all affected areas are appropriately addressed.

Evaluating air quality is important, but it serves as a broader assessment tool rather than focusing specifically on the contaminated systems. Measuring chemical exposure levels is relevant in certain contexts but doesn't directly address mold contamination within ventilation systems. Lastly, assessing the need for replacement filters is a maintenance consideration rather than a primary purpose of air sampling in the context of mold assessment. Therefore, determining the location and extent of contamination is essential for an effective response to the issue at hand.