How can humidity levels affect smoke detectors?

Prepare for the FDNY CoF – Supervision of Smoke Detectors (S-93) Test. Review multiple choice questions, hints, and explanations. Master the skills you need to pass!

Humidity levels can indeed influence the performance of smoke detectors, particularly ionization and photoelectric types. High humidity can lead to condensation within the smoke detector itself, which may obstruct the sensor's ability to accurately detect smoke particles. This condensation can mimic the conditions of smoke, triggering the alarm even in the absence of actual smoke, thereby causing false alarms.

In addition, excessive moisture can also accumulate dust and particles within the smoke detector, further increasing the likelihood of incorrect readings. Maintaining an appropriate humidity level is crucial for ensuring that smoke detectors function optimally and provide reliable monitoring.

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