Air Systems Cleaning Specialist (ASCS) Certification Exam

What is the primary function of a negative air machine used during duct cleaning?

To create negative pressure inside the duct system so contaminants are captured rather than released To pressurize the ducts for leak testing To measure airflow velocity To sanitize duct surfaces with UV light

Correct Answer:

To create negative pressure inside the duct system so contaminants are captured rather than released

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