Mold Remediation Certification Practice Exam 2025 – All-in-One Guide to Master Your Certification!

When operating with a negative air machine, a sealed containment is characterized by negative pressure. This means that the air pressure inside the containment area is lower than the air pressure outside of it. The purpose of using a negative air machine is to create a vacuum-like environment that prevents the spread of mold spores and contaminants outside of the work area.

By maintaining this negative pressure, the airflow is drawn inward from the surrounding areas into the containment rather than allowing air to escape outside. This is critical in mold remediation as it helps to contain any disturbed mold spores within the sealed area, thereby minimizing the risk of contamination of other spaces in the property. Negative pressure is an essential aspect of effective mold remediation protocols, ensuring safety and compliance with regulatory standards.