What method is used for fire detection in the lavatory?

The detection of fire in the lavatory is primarily achieved through the use of a smoke detector mounted in the ceiling of the lavatory. This method is effective because smoke detectors are designed to provide an early warning by sensing smoke particles, which is a critical step in identifying a fire situation before it escalates.

Smoke detectors can differentiate between various types of smoke and can react quickly to any sign of a fire, making them a reliable choice for ensuring safety in enclosed spaces like a lavatory. This system allows for faster emergency response, enhancing passenger safety.

Other methods, such as temperature gauges or heat sensors, may not be as effective in detecting early signs of fire since a significant temperature increase typically occurs after the fire has already started, potentially delaying detection. Manual inspections, while important, are not a practical or timely method for continuous monitoring and cannot replace the automatic detection capabilities provided by smoke detectors.