If the final air clearance test fails, which action is required?

• A. Repeat the visual inspection
• B. Repeat the final clearance air sample
• C. Ignore the result and continue
• D. Replace the equipment only

Answer: (B)

The final air clearance test is the verification step that the work area meets the approved asbestos fiber limits before it can be reoccupied. If the result shows a failure, you must stop and perform the necessary corrective actions to reduce airborne asbestos—such as re-cleaning, addressing any missed spots or deficiencies, and ensuring containment and cleanup are complete—and then repeat the final clearance air sample. Visual inspection alone does not validate air quality, and simply ignoring the failure or replacing equipment without addressing contamination does not bring the area into compliance.