Air Systems Cleaning Specialist (ASCS) Practice Exam

When mold is discovered in the air duct system, the appropriate course of action is to clean and remediate the ductwork following established industry standards. This involves a thorough cleaning process to remove the mold and any contaminants that may have accumulated in the system.

Mold not only poses health risks, such as respiratory issues and allergic reactions, but it can also compromise the overall efficiency of the HVAC system. Industry standards, such as those set by the Environmental Protection Agency (EPA) and the National Air Duct Cleaners Association (NADCA), provide guidelines for effective mold remediation. These standards ensure that the cleaning process is done safely and effectively, minimizing the potential for remaining mold spores or contaminants that could cause further health issues.

In contrast, leaving the mold alone and merely monitoring it can lead to increased growth and potential health hazards. Sealing ducts may contain the issue temporarily but does not resolve the underlying problem or eliminate the mold. Painting over mold is misleading and ineffective, as it does not eradicate the mold itself and may allow it to grow unnoticed underneath the paint layers, still posing health risks.

Thus, the best practice in addressing mold in air duct systems is thorough cleaning and remediation according to recognized industry standards, ensuring the space remains safe and healthy for