What must all persons entering a regulated area wear?

To ensure safety in regulated areas where asbestos may be present, it is crucial for all personnel to wear both an approved respirator and protective clothing. This requirement is in place because asbestos fibers are a significant health hazard; they can become airborne and are harmful when inhaled. The respirator provides respiratory protection, filtering out dangerous particles, while protective clothing helps prevent asbestos from settling on skin and regular clothing, which could lead to contamination outside the regulated area.

In contrast, wearing only safety goggles does not offer adequate protection against inhalation or skin exposure to asbestos fibers. Regular work clothes, without any specific protective measures, do not shield individuals from the risks associated with asbestos. An approved respirator alone, without protective clothing, still leaves the individual vulnerable to exposure through skin contact. Thus, the combination of both protective equipment is essential for ensuring comprehensive safety in these environments.