What should a properly contained area aim for with respect to air pressure?

A properly contained area in the context of mold remediation should aim for negative air pressure. This is crucial because maintaining negative air pressure helps prevent the spread of mold spores and other contaminants from the contained area to other parts of a building. When an area is under negative pressure, air flows into the contained space from areas of higher pressure, which means that any potential airborne contaminants are drawn in rather than venting out to the surrounding environment. This containment strategy is essential for minimizing health risks and ensuring that the cleanup process is effective.

In contrast, neutral, equal, or positive air pressure could lead to airborne mold spores escaping the contained area, compromising both the safety of the site and the effectiveness of the remediation efforts. Thus, achieving and maintaining negative air pressure is a best practice in mold remediation.