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CO2 Fire Extinguishers
CO2 fire extinguishers are suitable for fires involving flammable liquids (class B) and electrical equipment. They contain pure carbon dioxide which is a clean extinguishant, leaving no residue. CO2 fire extinguishers are ideal for server rooms where there is a large electrical fire risk. Our carbon dioxide fire extinguishers are fitted with a frost-free horn to prevent the operator getting frost burn when extinguishing. All of our CO2 extinguishers are CE marked, certified, fully charged, and supplied with a wall bracket. We recommend they are installed and commissioned by a BAFE certified engineer.
For more information about the different types of fire extinguishers visit our fire extinguisher guide.
9ltr Water & 2kg CO2 Fire Extinguisher Special Offer
One of the most common extinguisher combinations in office buildings in the UK. Suitable for Class A fires (Water) and electrical fires (CO2).
- FREE next working day delivery
- Water extinguisher rating: 21A
- CO2 extinguisher rating: 34B and electrical
- Suitable for offices, schools, warehouses, etc.
Refurbished 2kg CO2 Fire Extinguisher
Offering economical CO2 fire extinguisher solutions, these refurbished extinguishers are good quality, UK reworked units.
- Refurbished to high standards
- Rating 34B and electrical
- 1 Year Warranty
- Available with or without hose and horn
2kg CO2 Fire Extinguisher - UltraFire
Perfect for installation in server rooms & areas with high voltage, 2kg CO2's are light & easy to move & commonly partnered up with a foam or water extinguisher.
- Extinguisher Rating: 34B and electrical
- 10 Year Warranty
- Kitemarked to BS EN3 and CE marked
Polished Aluminium 2kg CO2 Fire Extinguisher
Highly polished aluminium, these CO2 fire extinguishers suit hotel lobbies, entrance halls and function rooms.
- Polished Aluminium 2kg CO2 Extinguisher
- Rating 34B and electrical
- Lloyd's registered
- CE marked
Anti-Magnetic 2kg CO2 Fire Extinguisher
Anti-magnetic extinguishers are installed in areas with sensitive electronic equipment such as MRI Scanning rooms where they will not interfere with the equipments performance.
- Ideal for hospitals and volatile environments
- 5 Year Warranty
- Kitemarked and CE marked
- Supplied with anti-magnetic wall bracket
9ltr Water Extinguisher, 2kg CO2 Fire Extinguisher & Double Stand - UltraFire Special Offer
With two high quality fire extinguishers plus double stand, this convenient bundle is popular in offices, shops, schools, warehouses, and more.
- FREE next working day delivery
- Water rating 21A, CO2 rating 34B + Electrically safe
- Sturdy & bright double red floor stand
- For fires on solid materials (class A) and flammable liquids (class B)
6kg Powder, 2kg CO2 Fire Extinguisher & Double Stand Special Offer
This money saving special offer features a 2kg CO2 and 6kg powder fire extinguisher, complete with double fire extinguisher stand, ideal for garages, warehouses and loading bays.
- FREE next working day delivery
- Powder Extinguisher Rating: 27A, 183B, C and Electrical
- CO2 Extinguisher Rating: 34B and Electrical
- Ideal for warehouses, garages and loading bays, etc.
6ltr Wet Chemical, 2kg CO2 Fire Extinguisher & Fire Blanket Special Offer
This money saving special offer, aimed at commercial and industrial kitchens, includes a 6ltr wet chemical extinguisher, a 2kg CO2 fire extinguisher and a 1.0m x 1.0m fire blanket.
- FREE next working day delivery
- Wet chemical extinguisher rating: 13A, 75F and Electrical
- CO2 extinguisher rating: 34B and Electrical
- Ideal for commercial and industrial kitchens
Refurbished 5kg CO2 Fire Extinguisher
Refurbished in the UK, these second-life cylinders are re-tested to ensure safety and effectiveness and they provide an economical alternative to new units.
- Refurbished to high standards
- Rating 55B and electrical
- 1 Year Warranty
- Available with or without hose and horn
5kg CO2 Fire Extinguisher - UltraFire
Most commonly found in server rooms, plant rooms with high voltage electrical equipment and areas with large volumes of flammable liquids.
- Extinguisher Rating 55B and electrical
- 10 Year Manufacturer's Warranty
- Kitemarked to BS EN3
- CE marked
Britannia Norfolk 20kg Wheeled CO2 Extinguisher
This wheeled CO2 extinguisher utilises a 6 metre reinforced hose for up to 44 seconds discharge over 4 metres, tested to BS EN 1866-1 and with the prestigious MED Marine Approval.
- Suitable for Class B fires involving live electrical equipment
- 20kg capacity
- CO2 (carbon dioxide) extinguishing agent
- MED Marine Approved
2kg CO2 Fire Extinguisher - Thomas Glover PowerX
With a frost-free horn, wall bracket, and a 5 year warranty, this new 2kg CO2 extinguisher from Thomas Glover is exceptional value for money.
- FREE next working day delivery
- Rating: 34B, electrical
- 5 year manufacturer's warranty
- Kitemarked (BS EN3) and CE marked
This product has been discontinued
Please see our alternative product
6ltr Foam & 2kg CO2 Fire Extinguisher Special Offer
One of the most popular extinguisher combinations, foam and CO2 fire extinguishers are often seen paired in offices, schools, shops, etc. Suitable for Class A & Class B (Foam) and Class B & Electrical (CO2) fires.
- FREE next working day delivery
- Foam extinguisher rating: 21A, 144B, Dielectrical
- CO2 extinguisher rating: 34B
- Ideal for offices, schools, shops, etc.
This product has been discontinued
Please see our alternative product
6ltr Foam, 2kg CO2 Fire Extinguisher & Double Stand Special Offer
Combining two of the most popular fire extinguishers with a double extinguisher stand, this money saving special offer is ideal for offices, schools, shops, etc.
- FREE next working day delivery
- Foam extinguisher rating: 21A, 144B, dielectrical
- CO2 extinguisher rating: 34B
- Ideal for offices, classrooms and shops
This product has been discontinued
Please see our alternative product
How does a CO2 Fire Extinguisher work?
A CO2 fire extinguisher works on fires involving live electrical equipment and flammable liquids. Carbon dioxide smothers the fire and starves it of oxygen, therefore putting the fire out. These extinguishers don’t leave any residue unlike other types of fire extinguishers, such as powder and foam. However, they should be used with caution in confined spaces as the rapid discharge of CO2 can displace breathable air, leading to breathing difficulty and unconsciousness due to the lack of oxygen.
CO2 fire extinguishers contain only carbon dioxide gas in a highly compressed format (55 bar pressure). It will evaporate without trace, and suffocates fire by starving the fire of oxygen. As the CO2 expands through the jet (horn), it becomes very cold, so cold in fact that the gas can cause frost damage to skin. Therefore, when choosing your fire extinguisher, make sure that you select an extinguisher with a frost-free horn.
What is a CO2 Fire Extinguisher?
A CO2 fire extinguisher is specifically designed to extinguish fires fuelled by flammable liquids (class B) and live electrical equipment. It discharges carbon dioxide which displaces oxygen and suffocates the fire. CO2 fire extinguishers can be identified by their black label, and are usually found in industrial settings such as laboratories, commercial kitchens, and places with electrical equipment.
CO2 fire extinguishers can be by the black identification field with the words CO2 or 'Carbon Dioxide' printed on this black field. CO2 extinguishers also have no pressure gauge and a discharge horn rather than a hose. You can often find them paired with a water fire extinguisher in many settings to cover multiple fire risks.
What can a CO2 fire extinguisher be used on?
CO2 extinguishers can be used on:- Fires involving electrical equipment such as servers or generators
- Class B fires - fires involving flammable liquids such as paint or fuel
CO2 fire extinguishers are usually selected for their ability to fight 'electrical fires'. Often found in areas where there is a large amount of electrical equipment like servers or generators, CO2 extinguishers usually cause less damage to electrical equipment when discharged as they leave no residue.
CO2 fire extinguishers are often paired with a water or foam extinguisher in office or retail environments. CO2 extinguishers are not suitable for use on class A (solid combustible) fires as they do not cool the fire and so are not effective on flammable solids such as wood, plastic or fabric. When paired with water or foam extinguishers, CO2 can be used to tackle electrical fires, and water or foam can be used to tackle class A fires. This pairing is designed to cover most common fire risks found in this type of environment.
CO2 fire extinguishers can also be used on class B fires (fires involving flammable liquids such as petrol or paint). CO2 extinguishers discharge a gas rather than a liquid and so can extinguish fires involving liquids without spreading the fire further.
What size CO2 fire extinguisher do I need?
CO2 extinguishers are available in a smaller size (2kg) or a larger size (5kg). 2kg CO2 fire extinguishers are often used in offices, schools or retail environments to tackle smaller fires involving electrical equipment. The 2kg extinguishers are lighter and therefore easier to handle.
The larger 5kg CO2 fire extinguisher is often used in more industrial environments or in a premises with a larger amount of electrical equipment. Server rooms or plant rooms with high voltage equipment commonly use this larger size of CO2 fire extinguisher.