Which type of respirator is NOT suitable for use in hazardous material handling?

A disposable face mask is not suitable for use in hazardous material handling due to its limited protective capabilities. Disposable masks, such as surgical masks or simple dust masks, are primarily designed to protect against dust, pollen, and non-toxic aerosols. They do not provide adequate filtration or a secure fit to protect the wearer from harmful substances, including gases, vapors, or particles that may be present in hazardous environments.

In contrast, the other types of respirators mentioned are specifically designed to provide a higher level of protection. Supplied-air respirators deliver clean, breathable air from an external source, making them suitable for environments with high levels of contamination. Powered Air-Purifying Respirators (PAPRs) utilize a battery-powered blower to force air through filters, offering effective protection against airborne contaminants. Full-face respirators provide a complete seal around the face and cover the eyes, further enhancing protection by filtering out harmful particles and vapors. Thus, the limited capability of disposable face masks makes them inappropriate for hazardous material handling.