Which isolation barrier is used to control mold migration when mold contamination covers between 10 and 100 square feet?

Which isolation barrier is used to control mold migration when mold contamination covers between 10 and 100 square feet?

• A. Limited containment
• B. Standard containment
• C. Total containment
• D. Transitional containment

Answer: (A)

The main idea here is that containment level is chosen based on how large the mold-affected area is, to keep spores from spreading to other parts of the building. For mold contamination covering 10 to 100 square feet, a limited containment setup is appropriate. This approach uses a small, clearly defined barrier (often plastic sheeting) to create a contained work zone, with controls on entry and exit and, if feasible, negative air pressure so air flows into the containment rather than out to adjacent spaces. This level provides enough control for a small area without the more extensive barriers and air controls required for larger, more complex jobs. If the area were larger or more complex, standard containment, transitional containment, or total containment would be considered to maintain tighter control of airflow and access.

The main idea here is that containment level is chosen based on how large the mold-affected area is, to keep spores from spreading to other parts of the building. For mold contamination covering 10 to 100 square feet, a limited containment setup is appropriate. This approach uses a small, clearly defined barrier (often plastic sheeting) to create a contained work zone, with controls on entry and exit and, if feasible, negative air pressure so air flows into the containment rather than out to adjacent spaces. This level provides enough control for a small area without the more extensive barriers and air controls required for larger, more complex jobs.

If the area were larger or more complex, standard containment, transitional containment, or total containment would be considered to maintain tighter control of airflow and access.