What is a major reason for performing fit testing on respirators?

Performing fit testing on respirators is primarily important for regulatory compliance. Various health and safety regulations, such as those set by the Occupational Safety and Health Administration (OSHA) in the United States, require that respirators fit properly to ensure that they can effectively protect the wearer from airborne contaminants, including asbestos fibers.

Fit testing is a critical part of a comprehensive respiratory protection program, ensuring that the chosen respirator forms a proper seal on the user's face. If a respirator does not fit well, it cannot provide the protection needed against harmful substances, which can result in health risks for the wearer. Thus, completing fit testing not only adheres to legal obligations but also plays a vital role in maintaining worker safety in environments where exposure to hazardous materials is a concern.

While enhancing comfort, reducing costs, and extending product lifespan might be desirable outcomes associated with the proper use of respirators, they are not the primary reasons for fit testing, making compliance with regulations the central focus in this context.