Types of Fire Extinguishers in Australia (2026 Guide)
Choosing the right fire extinguisher for your business isn’t guesswork — it depends on the types of fire risks in your premises and the fire classes those risks represent. Installing the wrong type is worse than having none at all in some scenarios: a water extinguisher on a cooking oil fire, or a powder extinguisher on a server room fire, can make a small incident catastrophic.
This guide covers all six types of fire extinguishers used in Australian commercial buildings, which fire classes each one covers, how to identify them by colour, and what Queensland businesses need to know about placement and servicing requirements under AS 2444 and AS 1851.
The 6 fire classes — what your extinguisher needs to handle
Before choosing an extinguisher type, you need to understand what types of fire can occur in your premises. Australian Standard AS 2444 classifies fires into six classes:
| Class | Fire type | Common sources |
|---|---|---|
| Class A | Combustible solids | Wood, paper, cardboard, fabric, rubber, plastics |
| Class B | Flammable and combustible liquids | Petrol, diesel, oils, solvents, paints, alcohols |
| Class C | Flammable gases | LPG, acetylene, natural gas, hydrogen |
| Class D | Combustible metals | Magnesium, lithium, titanium, sodium (industrial settings) |
| Class E | Electrically energised equipment | Switchboards, electrical panels, computers, wiring |
| Class F | Cooking oils and fats | Deep fryers, woks, commercial cooking equipment |
Most commercial premises have Class A and E risks as a baseline (paper/fabric and electrical equipment). Your specific industry adds to that — a commercial kitchen adds Class F, a workshop adds Class B, a laboratory may add Class C. The extinguishers you need depend on which classes are present.
The 6 types of fire extinguishers in Australia
WHITE BAND 1. ABE dry chemical powder
Fire classes covered: A, B, E — Class C (flammable gases) on some units only
ABE (ammonium-based) dry chemical powder is the most common fire extinguisher in Australian commercial premises. The letters tell you the fire classes it covers: A (ordinary combustibles), B (flammable liquids), and E (electrical). Class C (flammable gases) is not a given — most ABE units are not rated for it. Only units specifically tested and labelled for Class C will show it on the cylinder. If your site has LPG, natural gas, or other flammable gas risks, check the cylinder label before assuming coverage. It’s the default choice for offices, retail, warehouses, and most general commercial settings because of its broad A/B/E coverage.
The powder works by chemically interrupting the combustion chain reaction — it’s fast-acting and highly effective. The trade-off is that it leaves a powdery residue that requires cleanup, and the residue is mildly corrosive over time to sensitive electronics.
- Best for: Offices, retail stores, warehouses, reception areas, general commercial use
- Not for: Commercial kitchens (Class F), server rooms where residue damage is a concern
- Note: “BE” powder units cover only Classes B and E — most commercial premises should use ABE, not BE
BLACK BAND 2. CO₂ (carbon dioxide)
Fire classes covered: B, E
CO₂ extinguishers work by displacing oxygen and cooling the fire. They’re the preferred choice for electrical equipment fires because they leave no residue — a CO₂ discharge on a server, switchboard, or electrical panel won’t cause secondary damage that powder would. The gas dissipates completely, leaving the area and equipment clean.
CO₂ is particularly common near electrical switchboards, server rooms, commercial kitchens (for electrical equipment specifically — not for cooking oil fires), and laboratory settings. The discharge is cold and white (resembling snow), which can be alarming to bystanders but is non-toxic.
- Best for: Server rooms, electrical switchboards, commercial kitchens (electrical risk), laboratories
- Not for: Class A fires (combustibles), Class F fires (cooking oils), outdoor use in windy conditions
- Note: CO₂ cylinders require a weight check at every 6-monthly service — they don’t have a pressure gauge that reads accurately at room temperature
OATMEAL BAND 3. Wet chemical
Fire classes covered: A, F
Wet chemical extinguishers are the only type rated for Class F fires — cooking oils and fats. The agent works in two ways: it creates a soapy foam layer that seals the surface of the burning oil (preventing oxygen from reaching the fire), and it has a strong cooling effect that reduces the oil temperature below its ignition point. This combination makes it the safest and most effective option for commercial cooking fires.
Using any other extinguisher type on a cooking oil fire is dangerous. Water or foam on a deep fryer can cause a violent steam explosion that throws burning oil across the room. ABE powder is ineffective on Class F fires and may appear to extinguish them while the oil remains at ignition temperature.
- Best for: Commercial kitchens, food processing, catering, any premises with deep fryers or cooking equipment
- Not for: Class B (flammable liquids), Class E (electrical equipment — wet chemical conducts electricity)
- Note: The wet chemical agent has a finite shelf life — units are replaced at the 5-year overhaul rather than recharged on-site
BLUE BAND 4. Foam (AFFF)
Fire classes covered: A, B
Foam extinguishers (typically AFFF — Aqueous Film-Forming Foam) work by smothering flammable liquid fires with a foam blanket that excludes oxygen and prevents vapour release. They’re also effective on Class A fires through a combination of smothering and cooling. Foam leaves less residue than powder and is generally easier to clean up.
In Queensland commercial settings, foam units are most common in workshops, garages, fuel storage areas, car parks, and industrial premises where flammable liquid risks are present alongside general combustible materials. They’re less common than ABE powder in office and retail environments.
- Best for: Workshops, garages, warehouses with flammable liquid storage, car parks
- Not for: Class E (electrical) fires — foam conducts electricity; Class F (cooking oils)
RED (no band) 5. Water
Fire classes covered: A only
Water extinguishers cool burning material below its ignition temperature — they’re simple, effective on Class A fires, and the most environmentally benign option. However, their single-class coverage makes them the most limited extinguisher type, and incorrect use carries serious risks: water on an electrical fire causes electrocution, and water on a cooking fat fire causes a violent steam explosion.
In Queensland commercial settings, water extinguishers are rarely the primary choice. Where Class A risk is the only concern and there’s no electrical or cooking hazard, they’re viable — but ABE powder or foam typically provide better coverage for a similar cost.
- Best for: Environments with only Class A risk and no electrical equipment or flammable liquids
- Not for: Class B, C, D, E, or F fires — particularly dangerous on electrical and cooking fires
YELLOW BAND 6. Vaporising liquid (clean agent)
Fire classes covered: B, E
Vaporising liquid extinguishers (also called “clean agents”) use a halogenated compound that vaporises on discharge, leaving no residue. They were developed as the modern alternative to halon (which was banned under the Montreal Protocol due to its ozone-depleting properties). The agent works by chemically interrupting the combustion reaction and displacing oxygen without water, powder, or foam.
These units are less common in standard commercial settings but are valued where residue is unacceptable — computer rooms, telecommunications equipment, heritage buildings, and sensitive document archives. They’re typically more expensive than other types.
- Best for: Server rooms, telecommunications equipment, heritage buildings, art storage
- Not for: Class A fires (combustibles), Class F fires (cooking oils)
Quick-reference: which extinguisher for which fire class?
| Type | Class A | Class B | Class C | Class E | Class F |
|---|---|---|---|---|---|
| ABE dry powder | ✔ | ✔ | Some† | ✔ | ✘ |
| CO₂ | ✘ | ✔ | ✘ | ✔ | ✘ |
| Wet chemical | ✔ | ✘ | ✘ | ✘ | ✔ |
| Foam | ✔ | ✔ | ✘ | ✘ | ✘ |
| Water | ✔ | ✘ | ✘ | ✘ | ✘ |
| Vaporising liquid | ✘ | ✔ | ✘ | ✔ | ✘ |
† Class C (flammable gases): most ABE units are not rated for Class C — only units with “C” shown on the cylinder label are tested for flammable gas fires.
Class D (combustible metals): None of the six common types are effective on Class D fires. These are rare in most commercial settings but occur in industrial environments handling magnesium, lithium, or titanium. Specialist dry powder compounds (different from ABE) are required. If your premises handles these materials, consult a fire protection engineer for specific requirements.
How to identify fire extinguisher types by colour
Australian fire extinguishers use a standardised colour-coding system under AS 1841 — all cylinders are red, with a coloured band near the top identifying the extinguishing agent:
| Band colour | Agent type | Fire classes |
|---|---|---|
| White | ABE dry chemical powder | A, B, E (Class C: check cylinder) |
| Black | CO₂ carbon dioxide | B, E |
| Oatmeal / cream | Wet chemical | A, F |
| Blue | Foam (AFFF) | A, B |
| Red (no band) | Water | A |
| Yellow | Vaporising liquid | B, E |
The colour band is visible at a glance, allowing anyone in the premises — including people unfamiliar with fire equipment — to quickly identify which extinguisher to reach for. This is why correct identification signage and unobstructed mounting are compliance requirements, not optional extras.
Not sure which extinguishers your premises needs?
We’ll assess your site and confirm the right types, quantities, and placement for full AS 2444 compliance. From $120 for up to 5 extinguishers. QBCC Licence 1171614.
Book a Fire Compliance Assessment →AS 2444 placement requirements — where extinguishers must go
Having the right extinguisher type is only half the requirement. AS 2444-2001 (Selection and location of portable fire extinguishers) governs how extinguishers must be placed and mounted in Queensland commercial premises.
Mounting height
Extinguishers must be mounted so that the top of the handle is between 100mm and 1,200mm from the floor. This range ensures accessibility for most users — low enough to lift without reaching overhead, high enough to avoid being kicked or hidden. Units mounted outside this range are non-compliant regardless of type or condition.
Travel distance
Every point in the occupied area of your premises must be within 15 metres travel distance of an appropriate extinguisher — this is the standard for medium hazard environments (most offices, retail, and light commercial). High hazard environments (flammable liquid storage, workshops) require a shorter travel distance. The travel distance is measured along the actual path someone would walk, not as a straight line.
Identification and signage
Each extinguisher must be fitted with a compliant identification sign indicating its location. Signs must be visible from a distance and positioned to remain visible even if the extinguisher itself is temporarily removed for servicing. The identification label on the cylinder must remain legible — a faded or damaged label is a defect item at every 6-monthly service.
Accessibility
Extinguishers must be accessible at all times. Blocking an extinguisher with stock, equipment, furniture, or construction materials — even temporarily — creates a compliance failure and a safety risk. A fire service technician, a building auditor, or a Queensland Fire and Emergency Services authorised fire officer checking your premises will note any obstructed units.
AS 1851 servicing requirements — QLD businesses
Knowing the right type to install is one part of compliance. The other part is keeping every unit in service-ready condition through the mandatory inspection schedule under AS 1851-2012.
Every 6 months
All extinguisher types must be inspected and serviced every 6 months (twice per year). The 6-monthly frequency is prescribed by AS 1851-2012 — compliance with AS 1851 is mandatory in Queensland under the Building Fire Safety Regulation 2008 (Qld). Each service visit includes:
- Visual inspection of the cylinder, hose, nozzle, safety pin, and tamper indicator
- Pressure gauge check (for gauged units)
- Weight check (CO₂ and wet chemical — no gauge)
- Label and signage inspection
- Compliance tag update — showing service date, next due date, and technician QBCC licence number
- Written compliance report
Every 5 years
At the 5-year mark from manufacture, each extinguisher must undergo a full pressure test and internal overhaul — this is in addition to the routine 6-monthly visits, not instead of them. Essential Fire Protection uses a swap-and-go method: ABE units are replaced on-site with a brand-new extinguisher; CO₂ units are swapped for a factory hydraulically pressure-tested equivalent. No sending units away, no gap in your fire equipment coverage.
QBCC licensing in Queensland
This is where Queensland differs from most other states. Fire protection technicians in Queensland must hold a current QBCC (Queensland Building and Construction Commission) licence to certify AS 1851 compliance. Unlicensed servicing produces invalid compliance documentation — it won’t satisfy a building audit or support an insurance claim, regardless of how well the physical work was done. Always ask for a QBCC licence number before engaging any fire protection company.
Essential Fire Protection: QBCC Licence 1171614 | FPAA Licence IT47941 | Servicing Brisbane, Gold Coast, and Sunshine Coast
Frequently asked questions
The six types are: (1) ABE dry chemical powder (white band) — covers Classes A, B, C, E; (2) CO₂ (black band) — covers Classes B and E; (3) wet chemical (oatmeal band) — covers Classes A and F; (4) foam (blue band) — covers Classes A and B; (5) water (red cylinder, no band) — covers Class A only; (6) vaporising liquid (yellow band) — covers Classes B and E. ABE powder is the most common in Australian commercial premises due to its broad multi-class coverage.
A wet chemical extinguisher (oatmeal band) is the only type rated for Class F fires — cooking oils and fats. It seals the burning oil surface and cools the oil below ignition temperature. No other type handles Class F effectively, and some types are dangerous on cooking fires: water on a deep fryer causes a violent steam explosion. Commercial kitchens must have a wet chemical unit within AS 2444’s travel distance requirements, in addition to any ABE or CO₂ units needed for other risks in the space.
CO₂ or ABE dry powder are both rated for Class E (electrical) fires. CO₂ is preferred where residue damage is a concern — it leaves nothing behind, making it the first choice for server rooms, switchboards, and electrical panels. ABE powder is effective but leaves a corrosive residue that can damage sensitive electronics. Never use water or foam on electrical fires — both conduct electricity and can cause electrocution.
Every 6 months (twice per year) under AS 1851-2012, which is mandatory in Queensland under the Building Fire Safety Regulation 2008 (Qld). At the 5-year mark, each unit also requires a full pressure test and overhaul. Both services must be carried out by a QBCC-licensed technician to produce valid compliance documentation. See our complete guide to fire extinguisher testing frequency for the full schedule.
Under the Australian standard, all cylinders are red with a coloured band identifying the agent: white = ABE powder; black = CO₂; oatmeal/cream = wet chemical; blue = foam; red only (no band) = water; yellow = vaporising liquid. This system is standardised across Australia — any extinguisher sold or used commercially must use this colour coding.
Under AS 2444, extinguishers must be: mounted between 100mm and 1,200mm from the floor (top of handle); positioned so every part of the occupied area is within 15 metres travel distance of an appropriate extinguisher (medium hazard standard); located near exits and along escape routes; clearly signed; and accessible at all times. A QBCC-licensed technician can assess your premises and confirm the correct number, type, and placement for full compliance.
Book your fire extinguisher service — QBCC licensed, no call-out fees
From $120 for up to 5 extinguishers, $12 per additional unit. QBCC Licence 1171614. We service all extinguisher types across Brisbane, Gold Coast, and Sunshine Coast — and we send reminders when your next 6-monthly service is due.
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