In the context of asbestos handling, what purpose does the weight at the bottom of the curtained doorway serve?

The purpose of the weight at the bottom of the curtained doorway is primarily to prevent the curtain from blowing open. In environments where asbestos handling is taking place, it is critical to maintain containment. The weighted curtain creates a barrier that keeps the enclosure intact, minimizing the risk of asbestos fibers escaping into the surrounding area. By ensuring that the curtain remains closed, workers can reduce the risk of exposure for themselves and others.

While maintaining structural integrity is important, the main function of the weight is to address environmental factors that could disrupt the containment, such as drafts or air movement. Other options, like signaling the location of entry or enhancing visibility, do not relate directly to the primary concern of controlling asbestos exposure, which is why they do not serve as the correct answer.