Aerosol Fire Suppression Systems

Yes. The aerosol agent is non-toxic and non-corrosive, so it doesn’t harm occupants (though evacuation during discharge is standard) and is safe for most electrical equipment. Unlike CO₂, it does not reduce oxygen levels. The fine residue (potassium salt) settles without acidification, so sensitive gear is usually unharmed (ventilate or clean up dust afterward).

Aerosol works on common fire classes A, B, C, E and F (wood, liquids, electrical, grease). It is especially effective for electrical fires (switchgear, control panels, EV battery packs) because it suppresses thermal runaway and remains suspended to prevent re-ignition. Typical uses include server rooms, generators, automotive machinery, and confined equipment where space is tight and fast knockdown is needed. It’s generally <i>not</i> used for metal fires (Class D).

Aerosol units are ideal where a compact, sealed or semi-sealed enclosure exists: e.g. engine rooms, CNC machine enclosures, electrical cabinets, warehouses, or labs. Because the aerosol floods the entire space, you do not need perfect airtightness – even “leaky” rooms work. Unlike gas systems, no annual room integrity testing or vent ducts are required. Install units near the fire risk and detectors at high points for quickest response.

Most systems use automatic detection: heat/temperature sensors or smoke detectors trigger the aerosol generator. A typical design uses a “double-knock” (smoke <i>and</i> heat) to avoid false alarms. Generators then activate via an electrical signal (or a thermal link/fuse in smaller units). Some systems also allow manual release from a control panel. No pressurised gas or bulky valves are needed; the solid generator simply ignites internally on command.