According to NFPA 72, in addition to the type of equipment, which additional factor should be considered when determining the frequency of cleaning system equipment?
The need toclean devicessuch as detectors is influenced by theenvironment they are installed in, not just their type or age. Dusty, smoky, or humid environments will require more frequent cleaning.
NFPA 72 (2022), Section 14.4.1.3:
“The frequency of cleaning shall be determined by the manufacturer’s instructions and the local ambient conditions.”
Correct answer: C. Local ambient conditions
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