Air Systems Cleaning Specialist (ASCS) — Question 13

What does ACR, The NADCA Standard recommend while cleaning internally-lined fiberglass ductwork, microbial contamination is observed within the fiberglass liner?

Answer options

• A. Remove and replace the fiberglass liner
• B. Clean and sanitize the fiberglass liner
• C. Clean and coat the fiberglass liner
• D. Clean and disinfect the fiberglass liner

Correct answer: D

Explanation

The correct answer is D, as cleaning and disinfecting the fiberglass liner is essential to effectively remove microbial contamination. Options A, B, and C either involve unnecessary removal or do not adequately address the need for disinfection to eliminate the contaminants present.