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Smoke Detector, Photoelectric

In a photoelectric light scattering smoke detector, a light source and a photosensitive sensor are arranged so that the rays from the light source do not normally fall on the sensor. When smoke particles enter the light path, some of the light is scattered by reflection and refraction onto the sensor causing the detector to activate.

Smoke Exhaust Fan

A fan that is activated to exhaust the smoke from an area.

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