Air Systems Cleaning Specialist (ASCS) — Question 1

Unless otherwise specified, the goal of HVAC system cleaning is to restore the system to what minimum level of cleanliness?

Answer options

Correct answer: B

Explanation

The correct answer is B, which indicates that the system must be completely free of all adhered substances to meet the cleanliness standard. Answer A is incorrect because being visibly clean does not guarantee the absence of contaminants. Answer C provides a specific weight of contaminants that is not applicable to the minimum cleanliness goal, and answer D, while indicating a level of cleanliness, does not specifically address the requirement to be free of adhered substances.