CO2 Fire Extinguishers in Sydney & NSW – Supply, Install & Service
A CO2 fire extinguisher uses pressurised carbon dioxide gas to suppress fires by displacing oxygen and rapidly cooling the burning material. Unlike dry powder or foam alternatives, CO2 leaves absolutely no residue after discharge, making it the safest and most practical choice for environments where secondary damage from suppressant agents is unacceptable.
SPS Fire & Safety supplies, installs, and services CO2 extinguishers for businesses across Sydney and NSW, including offices, server rooms, data centres, medical facilities, commercial kitchens (non-cooking areas), and any setting with significant electrical or electronic equipment.
WHAT IS A CO2 FIRE EXTINGUISHER?
A CO₂ (carbon dioxide) fire extinguisher displaces oxygen in the immediate vicinity of a fire, starving the combustion process and suppressing flames rapidly. Because carbon dioxide is a gas, it leaves no powder residue, no water damage, and no corrosive agents — making it the preferred choice for offices, server rooms, laboratories, and any environment housing electrical or electronic equipment.
CO₂ extinguishers are identified by their black band on the cylinder, as per Australian Standard colour-coding requirements.
The new CO2 Fire Extinguisher we supply & install comes with brackets, location signage and ID signage.
What Is a CO2 Fire Extinguisher Used For?
CO2 extinguishers are rated for Class B fires (flammable liquids) and Class E fires (electrically energised equipment). They are the preferred option wherever water, powder, or foam would cause unacceptable collateral damage. Common applications include:
Server rooms and data centres – zero residue protects sensitive electronics
Offices with high-value computing or AV equipment
Medical and laboratory environments
Commercial kitchens (non-cooking zones, e.g. near refrigeration or dishwashing equipment)
Workshops and industrial spaces with electrical risk
CO2 vs Dry Powder Fire Extinguisher – Which Do You Need?
The key distinction is residue. A dry powder ABE extinguisher is more versatile – it covers Class A, B, and E fires – but leaves a fine powder that can damage electronics and requires significant clean-up. A CO2 fire extinguisher covers Class B and E fires only, but discharges cleanly with no lasting contamination. If your primary risk is electrical equipment or sensitive technology, CO2 is the right choice. For mixed-risk environments, we often recommend a combination of both.
APPLICABLE FIRE CLASSES
Class B
FLAMMABLE LIQUIDS
— Petrol
— Diesel
— Paints
Class E
ELECTRICAL HAZARDS
— Server & data rooms
— Switchboards & switchgear
— Office & lab equipment
— Distribution boards
NOT SUITABLE FOR
CO2 extinguishers are not to be used for Class A (Paper, Woods) or Class F (cooking oils, grease) fires. For Class A fires, an ABE fire extinguisher should be used, while a wet chemical fire extinguisher is recommended for Class F fires.
CO2 Extinguisher Sizes Available
SIZE
DISCHARGE TIME
2 KG CO2 FIRE EXTINGUISHER
~10 sec
3.5 KG CO2 FIRE EXTINGUISHER
~12 sec
5 KG CO2 FIRE EXTINGUISHER
~15 sec
SIZE
DESCRIPTION
2 KG CO2 FIRE EXTINGUISHER
Compact, ideal for small offices, reception areas, and vehicles
3.5 KG CO2 FIRE EXTINGUISHER
The most common commercial size, suited to offices and server rooms
5 KG CO2 FIRE EXTINGUISHER
Heavier-duty coverage for larger spaces
All units approved to AS/NZS 1841.6 and supplied with wall bracket and maintenance tag
Supply, Install & Service in Sydney & NSW
SIZE
DISCHARGE TIME
2 KG CO2 FIRE EXTINGUISHER
~10 sec
3.5 KG CO2 FIRE EXTINGUISHER
~12 sec
5 KG CO2 FIRE EXTINGUISHER
~15 sec
SPS offers complete CO2 fire extinguisher supply and installation across Sydney and NSW, including all required signage to AS 2444 and placement assessment. We also provide scheduled CO2 extinguisher servicing and compliance testing as part of our fire maintenance programmes. Contact us today for a CO2 extinguisher price and installation quote in NSW.