What does a negative pressure enclosure do during asbestos removal?

A negative pressure enclosure is specifically designed to contain airborne contaminants, such as asbestos fibers, within a designated area during the removal process. By maintaining lower air pressure inside the enclosure compared to the surrounding environment, any potential release of asbestos fibers is prevented from escaping into adjacent spaces. This method is crucial in protecting the health of workers and the general public by minimizing exposure to harmful asbestos particles.

The other options do not accurately describe the primary function of a negative pressure enclosure. While increasing air circulation, enhancing visibility, and allowing easy access to the site might be desirable features in certain situations, they do not capture the essential purpose of the enclosure, which is to create a controlled environment that prevents the migration of hazardous materials.