In fire safety, what is considered a main reason for cleaning and recalibrating smoke detectors?

Cleaning and recalibrating smoke detectors is essential primarily to ensure they function within the specified sensitivity range. Smoke detectors rely on precise levels of sensitivity to detect smoke particles and alert occupants in the event of a fire. Over time, dust, dirt, and other contaminants can accumulate in smoke detectors, which may impair their ability to accurately detect smoke. Regular cleaning helps maintain their responsiveness and effectiveness, ensuring that they can perform optimally when needed.

Recalibrating the detector ensures that, even if contaminants were present, the device operates correctly and meets the manufacturer's specifications and standards. This maintenance is crucial for both safety and reliability, as a detector that fails to respond can lead to devastating consequences in a fire emergency. While compliance with fire code requirements is important, the primary function of maintenance is to uphold the sensitivity and functionality of the detectors themselves to provide accurate detection.