The most effective method for maintaining acceptable indoor air quality is:
A) Reduction and/or elimination of the pollutant sources.
B) Banks of ultraviolet lights installed in the ductwork and over the coil.
C) Increased ventilation.
D) Better quality filtration.
A
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a. single b. duplex c. triple d. quadruple
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Indicate whether the statement is true or false
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A) One channel B) Two channel C) Three channel D) Four channel
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Answer the following statement true (T) or false (F)