This safety lesson explains how to manage and perform respirator fit testing to keep workers safe. It covers the importance of ensuring a proper seal between the respirator and the user’s face to prevent harmful exposure. Employers will learn when fit tests are required, who can perform them, and how to document the process. The lesson also explains different types of fit tests, such as qualitative and quantitative methods. By following Cal/OSHA rules and best practices, employers can help protect workers from airborne hazards.