How to use a 2kg fire extinguisher
Updated: 20 October 2026
How to use a 2kg fire extinguisher starts before the pin: you decide whether this fire is still small enough that you can leave if the jet does not finish it. A 2 kg powder, or a 2 litre water-based unit, is used up quickly. GOV.UK tells households to use an extinguisher only on a very small fire. If that does not fit, get out and call 999. The models sit on the [2 kg fire extinguisher comparison](/hub/fire-protection/fire-extinguisher-2kg). Peter F. did not discharge a cylinder. A qualifying purchase can earn us a commission at no extra cost to you.
How to use a 2kg fire extinguisher starts before the pin: you decide whether this fire is still small enough that you can leave if the jet does not finish it.
How to use a 2kg fire extinguisher starts before the pin: you decide whether this fire is still small enough that you can leave if the jet does not finish it. A 2 kg powder, or a 2 litre water-based unit, is used up quickly. GOV.UK tells households to use an extinguisher only on a very small fire. If that does not fit, get out and call 999. The models sit on the 2 kg fire extinguisher comparison. Peter F. did not discharge a cylinder. A qualifying purchase can earn us a commission at no extra cost to you.
Our top picks
| Badge | Product | Agent | Arrival fault in the reviews | When you stop | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Not stated 2 kg dry powder extinguisher | ABC dry powder | No expiry date printed, in the reviews | Leave if one cylinder fails | 8.1 | about £19.99 | View offer |
| Best value |  Firexo Firexo 2 litre pack | Water-based, pack of 2 | Pin or seal already off | Leave if one cylinder fails | 5.4 | about £90 | View offer |
| Alternative |  Gloria Gloria P2 GM 2 kg car powder | Dry powder | Gauge described with no pressure | Get out of the car first | 3.4 | about £64.67 | View offer |
On this page
Decide before you pull the pin
Stand where you can see the fire and still see your way out. If smoke is building, or the fire is spreading faster than a small bin, you leave, close the door if you can, and call 999 from outside. One small cylinder is the limit. You do not go back for a second cylinder while the first one has failed. Keep your back toward the exit. If you are in a vehicle, get out before you operate the extinguisher. That mounting question is on the car page. Hampshire, and Devon and Somerset, warn against powder in an enclosed space because you can lose sight of the way out.
Check the gauge, pin, and seal
The gauge, where the model has one, should sit in the green. The pin should be in place and the tamper seal should be intact. Firexo reviews include a pin and seal already off, and agent that sprayed when the unit was lifted. Navpower reviews include cylinders described as empty or leaking, and a plastic base that arrived broken. Gloria reviews include a gauge described as showing no pressure. The about £19.99 reviewers mostly say they have not used it, and that no expiry date is printed. If the seal is already broken, do not try a short burst. Once a stored-pressure cylinder has been opened, you should not rely on it for a second occasion. Signing for the parcel is not commissioning.
Pass, aim at the base, then sweep
You pull the pin only after the fire is still small enough to leave. You aim at the base, where the fuel is, not at the flames higher up. You squeeze the handles. You sweep across that base until the fire is out, or until you can see that it is not. The Amazon files do not print a discharge time, so this page will not quote one. A 2 kg or 2 litre unit is finished quickly. If the fire is still growing when the jet falters, you stop, leave, and call 999.
Powder clouds and pans of oil
London Fire Brigade tells you not to tackle a chip pan, not to move the pan, and never to throw water on it. Devon and Somerset Fire and Rescue Service says you should not jet an extinguisher onto a chip pan either. A fire blanket is only for a tiny pan fire you already know how to cover. Gloria naming a kitchen does not change that rule. In a small room you can lose the door. BS 5306-8, as quoted by the Fire Protection Association, warns against powder indoors unless a risk assessment says otherwise. A water-based unit is the argument on the powder or liquid page. After any use, do not hang the cylinder back and call it ready.
Common questions
What does PASS mean in a full sentence?
You pull the pin after you have decided the fire is still small, you aim the nozzle at the base of the flames, you squeeze the handles so the agent discharges, and you sweep that jet across the base of the fire. You stop and leave if one cylinder does not put it out. The letters are a memory aid. They are not permission to stay in a room that is filling with smoke.
What if one 2 kg cylinder does not put the fire out?
You leave. A fire that is still growing after one small cylinder is beyond what you should fight. Get out, stay out, close the door if you can do it quickly, and call 999. Do not go looking for a second extinguisher in another room while the first fire is spreading. Tell the fire service what was burning.
Should you use powder in a flat?
Fire services in England advise against powder in an enclosed space because the cloud cuts visibility and makes breathing harder. A flat with one exit is a poor place to fill with ABC powder. Powder is the usual choice for a vehicle or an open garage. If the only fire you are worried about is a chip pan, powder is the wrong agent anyway.
What do you do with a pan of burning oil?
You do not tackle it with this extinguisher, you do not move the pan, and you never use water. Turn the heat off only if you can do that without leaning across the flames. Get out and call 999. A fire blanket is only for a tiny pan fire you have already been shown how to cover. London Fire Brigade's pan-fire advice is the rule to follow, not the class letters on a powder cylinder.
What if the gauge is not in the green when the parcel arrives?
Do not rely on that cylinder. A gauge out of the green, a pin already out, a broken seal, or powder leaking in the box means you return it or you hand it to a competent person. Do not test it with a short squirt and then store the rest. Once a stored-pressure cylinder has been opened, you should not treat the remainder as a full charge.
Related pages
Sources
Public UK sources from the research digest. Listing prices, stars, and review counts are from amazon.co.uk on 19 October 2026.
- Regulatory Reform (Fire Safety) Order 2005, article 6 (retrieved 19 October 2026)
- GOV.UK — Fire safety in the home (retrieved 19 October 2026)
- HSE — Carriage of dangerous goods, exemptions (retrieved 19 October 2026)
- BAFE — How often should I service my fire extinguishers (BS 5306-3) (retrieved 19 October 2026)
- Devon and Somerset Fire and Rescue Service — Fire safety equipment (retrieved 19 October 2026)
- Fire Protection Association — Who is responsible for using a fire extinguisher (retrieved 19 October 2026)
- Firexo — 2 litre extinguisher, model 809-765-347-846 (retrieved 19 October 2026)
- Halfords — A guide to vehicle fire extinguishers (retrieved 19 October 2026)