What is the purpose of a negative air pressure system in an abatement project?

The purpose of a negative air pressure system in an abatement project is to prevent the spread of airborne asbestos fibers outside the work area. This system creates a pressure differential by exhausting air from the containment area, which helps ensure that air flows into the work area rather than out. This is crucial in asbestos abatement because it minimizes the risk of contaminating the surrounding environment with harmful asbestos fibers, protecting both workers and the public.

In contrast, reducing the temperature in the work area, preparing surfaces for removal, or providing fresh air to workers are not primary functions of a negative air pressure system. While maintaining a safe working temperature and providing adequate ventilation are important, they are managed through different methods and systems tailored to those specific needs. The negative air pressure system focuses specifically on containing airborne contaminants within the designated abatement area.