What is the primary purpose of qualitative fit testing?

Qualitative fit testing is designed specifically to assess the effectiveness of a respirator’s seal on the user’s face. This testing method evaluates whether the respirator creates an adequate airtight seal that prevents contaminants from entering. When a proper seal is established, the wearer can be more confident that the respirator will provide the necessary protection against airborne hazards.

During qualitative fit testing, the individual wears the respirator while being exposed to a test agent, such as a harmless aerosol or vapor. The participant's ability to detect the presence of the test agent indicates whether the respirator is fitting well. If the user can smell, taste, or sense the test agent, it suggests that the respirator is not properly sealing.

In this context, the focus is solely on the effectiveness of the respirator's fit to the individual's face, ensuring it provides optimal protection during potential exposure to harmful substances. Other options do not pertain to the core function of fit testing; for example, the price of the respirator or its airflow characteristics are not relevant to the seal integrity being evaluated.