What is a significant function of a "negative air pressure" system during asbestos abatement?

A significant function of a "negative air pressure" system during asbestos abatement is to help prevent asbestos fibers from escaping the work area. In the context of asbestos removal, maintaining a controlled environment is critical due to the health risks associated with asbestos exposure. A negative air pressure system creates a pressure differential by removing more air from the work area than is allowed to enter, effectively containing airborne fibers within the designated area.

This approach is essential for minimizing the risk of asbestos fibers migrating to adjacent spaces, where they could pose health hazards to workers and building occupants. By lowering the internal air pressure compared to the surrounding areas, any potential leaks or breaches in containment are less likely to allow contaminated air to escape, thus adhering to safety regulations and ensuring the safety of both workers and the public.

The other options focus on goals that are not the primary intent of a negative air pressure system in this context, such as increasing airflow or enhancing worker comfort, which are less relevant to the core purpose of controlling asbestos exposure.