Which statement is true regarding the use of containment during mold remediation?

The correct answer focuses on the important role of containment during mold remediation. Containment is essential because it significantly restricts the movement of mold spores from the contaminated area to other parts of the building. By creating a physical barrier, containment helps prevent the spread of spores during the remediation process, which can otherwise lead to cross-contamination and exacerbate the problem.

Effective containment also involves sealing off the area with plastic sheeting and employing negative air pressure, which further controls airborne spores and keeps the environment safe for both the remediation team and current occupants of the building. This strategy is a standard practice in mold remediation to ensure that the cleanup is efficient and minimizes the risk of further mold propagation.

In contrast, the other options suggest misunderstandings about the importance of containment, either underestimating its necessity or incorrectly asserting its ineffectiveness. Containment is not limited to large jobs; it is critical for any mold issue, regardless of its size, to manage and contain the spores effectively.