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Aspiration System

Aspirating Smoke Detection is based around a central detection unit which continually draws air through a network of small and unobtrusive pipes. Aspirating smoke detectors use discrete sampling pipes with multiple holes and a fan unit to draw air through the pipes from the protected area. As this happens the air is filtered, removing any contaminants or dust to avoid false alarms, before it is processed by the highly sensitive detection unit. As the air moves through the units sampling chamber, the detection unit uses a laser-based light source to measure the amount of light that is scattered (or reflected) by smoke particles in the chamber.
Aspirating smoke detectors are highly sensitive and can detect smoke even before it is visible to the human eye, providing a very early warning of a fire event and prompting investigation at the earliest smouldering stage of fire.