What is the main purpose of fit testing for respirators?

The main purpose of fit testing for respirators is to ensure respiratory protection. Fit testing is a crucial step in the respiratory protection program because it determines whether a respirator properly seals to the wearer's face. A proper fit is essential for the respirator to effectively filter out harmful airborne contaminants, providing the intended level of protection from hazards in the workplace.

Fit testing is conducted to verify that the respirator forms a tight seal around the wearer’s face, which is vital for optimal performance. If a respirator does not fit correctly, it may allow unfiltered air to enter, negating its protective benefits. Therefore, the fit test plays a critical role in safeguarding the health and safety of employees who are exposed to respiratory hazards by ensuring that the selected respirator can provide the necessary protection based on individual facial characteristics.