This standard covers full face masks, with assessments including field of vision, flammability, and strength of connections, and tests including breathing resistance, carbon dioxide content, and inward leakage. The respirator must be tested both on laboratory equipment and on real people performing work simulation tests in a laboratory environment. Specifications and requirements are also given for cleaning & disinfecting, marking, packaging, and user information.

Additionally, this standard requires assessment of the visor or eyepiece for mechanical strength, distortion, misting and leak tightness, which is assessed before and after mechanical strength testing. If the respirator includes a speech diaphragm it must be tested for strength and function.