Ultraviolet light-generating equipment can be used in HVAC air distribution systems to _____.
a. reduce odors caused by cigarette smoke
b. help prevent the growth of bacteria and micro-organisms
c. protect coils and drain pans from ice buildup
d. examine the duct work for cleanliness and damage
Question 2
The high-voltage power supply in an electronic air cleaner is connected to the ionizer section and the _____.
a. charcoal section
b. collector section
c. prefilter section
d. first section