Powder or water based fire extinguisher
Updated: 20 October 2026
The Amazon bullet that says all fires is doing too much work. Powder is the usual agent for a vehicle or a garage. The water-based 2 litre is for a small room, and only inside the certificate the manufacturer states. Prices sit on the [2 kg fire extinguisher comparison](/hub/fire-protection/fire-extinguisher-2kg). Who should buy which ASIN is on the [best 2 kg](/hub/fire-protection/fire-extinguisher-2kg/sub/fire-extinguisher-2kg-best) page. We did not burn a test fire. A qualifying purchase can earn us a commission at no extra cost to you.
The Amazon bullet that says all fires is doing too much work. Powder is the usual agent for a vehicle or a garage. The water-based 2 litre is for a small room, and only inside the certificate the manufacturer states.
The Amazon bullet that says all fires is doing too much work. Powder is the usual agent for a vehicle or a garage. The water-based 2 litre is for a small room, and only inside the certificate the manufacturer states. Prices sit on the 2 kg fire extinguisher comparison. Who should buy which ASIN is on the best 2 kg page. We did not burn a test fire. A qualifying purchase can earn us a commission at no extra cost to you.
Our top picks
| Badge | Product | Agent | Classes to read | Where it fits | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Not stated 2 kg dry powder extinguisher | ABC dry powder | A, B and C on the title | Van, garage, or workshop | 8.1 | about £19.99 | View offer |
| Best value |  Firexo Firexo 2 litre pack | Water-based, pack of 2 | Maker: A, B, F; listing is wider | Small indoor room | 5.4 | about £90 | View offer |
| Alternative |  Gloria Gloria P2 GM 2 kg car powder | Dry powder | A, B and C | Car shape, same powder cloud | 3.4 | about £64.67 | View offer |
On this page
What a 2 kg ABC powder is for
Three of the four listings are powder. B0CPYG8K2V at about £19.99 states classes A, B and C, BS EN 3-7, a Kitemark, and a vehicle bracket. Navpower at about £29.53 claims RINA and MED and prints no BS EN 3 line. The Gloria at about £64.67 cites DIN EN 3 and a car holder. Powder is the default in a van, a garage, or a boat locker, and a poor default in a flat even if a title names a kitchen.
What the powder cloud costs you
Discharge a 2 kg ABC powder in a small room and you can lose sight of the door. The Fire Protection Association quotes BS 5306-8: powder indoors can impair visibility and breathing unless a risk assessment has dealt with that risk. Devon and Somerset, and Hampshire, say powder is not for enclosed spaces. Powder knocks flame down and then sits on the fuel, so the fire can come back. Trade sheets often quote about −20 °C to +60 °C for ABC powder, while Firexo's 2 litre page quotes about −15 °C to +60 °C.
What the 2 litre listing is allowed to say
B0H2DQTVF3 is about £90, a 2 litre pack of two, model 809-765-347-846. The bullets claim classes A, B, C, D, electrical, F, and lithium-ion. Firexo's own page limits BS EN 3-7 to A, B, and F plus electrical fires up to 1000 V at 1 metre, and publishes 13A, 34B, and 25F. Those numbers are the manufacturer's, not a line in the Amazon saved listing. Class C, Class D, and lithium-ion are further testing. EN 3-7 reserves the formal Class C mark for powder. 25F is a published oil-fire rating, not an invitation to stay with a chip pan. The moment you leave is on how to use a 2 kg fire extinguisher.
Which to pick, with one condition
Pick ABC powder for a vehicle, an open garage, or a workshop. Start with B0CPYG8K2V if you want the stated Kitemark, or the Gloria if you want the car holder at about £64.67. Leave Navpower if the base is broken or the cylinder feels empty. Pick the Firexo pack for a small indoor room only if you treat BS EN 3-7 as A, B, and F plus the stated electrical limit. Do not promote the Amazon bullet into a certificate for Class C, Class D, or lithium-ion, and do not treat Class F as permission to fight a chip pan.
Common questions
Why do fire services dislike powder in a flat?
Because the cloud from an ABC powder can take away your view of the door and make breathing harder. The Fire Protection Association quotes BS 5306-8 on that indoor limit unless a risk assessment has dealt with it. Devon and Somerset Fire and Rescue Service tells householders not to use powder in enclosed spaces. A flat with one exit is the situation they are describing. A van or an open garage is a different situation.
What is Firexo actually certified for under BS EN 3-7?
On the manufacturer's 2 litre page, model 809-765-347-846 is described as BS EN 3-7 for classes A, B, and F, plus electrical fires up to 1000 V at 1 metre, with ratings 13A, 34B, and 25F. Those figures are the manufacturer's, not a line we found in the Amazon saved listing. Class C, Class D, and lithium-ion are described there as separate tests. The Amazon bullets claim a wider list.
Does all fires on Amazon mean Class C is on the EN 3 mark?
No. The about £90 listing claims classes A, B, C, D, electrical, F, and lithium-ion. Firexo's own fire-testing note says EN 3-7 reserves the formal Class C mark for powder. Class C on this water-based model is not the same thing as a powder's Class C mark. Read the manufacturer's split, not the widest bullet, if you need to know what the certificate covers.
Can you use either type on a chip pan at home?
Do not stay and fight a chip pan with either of them. Do not move the pan, and never use water on burning oil. London Fire Brigade and Devon and Somerset Fire and Rescue Service both take that line, and they include not jetting an extinguisher onto the pan. A Class F rating on the Firexo manufacturer page is a test result, not permission to remain in a smoky kitchen. Get out and call 999.
What must you not claim about lithium-ion batteries?
You must not claim that this Firexo pack is certified under BS EN 3 for lithium-ion battery fires. The manufacturer describes lithium-ion, Class C, and Class D as further testing, outside the EN 3-7 scope it states for A, B, and F. The Amazon bullet that lists lithium-ion is the listing text. It is not that certificate. A large battery fire is a reason to get out and call 999, not a reason to stay with a 2 litre cylinder.
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)