(ASCS) Air Systems Cleaning Specialist Certification Practice Test
ASCS ASCS Equipment and Tools
What is the primary function of a negative air machine used during duct cleaning?
Select your answer
A
To create negative pressure inside the duct system so contaminants are captured rather than released
B
To pressurize the ducts for leak testing
C
To measure airflow velocity
D
To sanitize duct surfaces with UV light
Hint
