Fluorine-free Foam Fire Extinguishers. Much like the rest of the fire safety world, we’re no stranger to this subject. The nature of foam as an extinguishing agent has dominated firefighting conversation for some time now. It has gone through many changes since its conception, both in terms of composition and legislation.
It’s easy for things to get muddled, to not know why or where to buy a foam extinguisher. As such, I think it’s pertinent to give it to you straight: what foam extinguishers are used for, why you might want yours to be fluorine-free, and how we even got here in the first place.
What are Foam Fire Extinguishers used for?
Foam is a versatile and effective extinguishing agent. It can tackle Class A (flammable solids) and B (flammable liquids) fires with ease. This makes foam extinguishers a popular choice for simple commercial and public environments such as offices, schools, and workshops. In this sense they combine a bit of the rationale behind having a Water and a CO2 Extinguisher into one. CO2 extinguishers are recommended for handling electrical fires. But if these aren’t much of a risk for your premises, then foam may be a more comprehensive option.
Overall, we would have to recommend powder if you’re facing a risk of Class A, B, C and electrical fires. So why not just buy a powder extinguisher? Well, powder behaves a little differently to foam and has some specific drawbacks. They’re really not suitable for indoor use. The powder is harmful on skin contact or when inhaled, and can reduce visibility when used. This presents direct hazards when used in an enclosed environment or in sequence with an evacuation. Powder also doesn’t directly cool the fire’s fuel source, meaning reignition remains a possibility.
Foam avoids these complications by being a cooling agent. It removes heat from the fire triangle, and like powder, it creates a barrier between the fuel and the flame. It is also non-toxic and easy to clean away (actual disposal is its own issue, and is part of the reason fluorine-free foam exists). This all makes it a bit more effective against the fires it is rated for, and makes it safe to use indoors. And, beyond the more general uses listed above, these are the best fit for locations like flammable liquid storage.
Why would I Change to Fluorine-free Foam?
To recall some keywords mentioned earlier: composition, legislation, and disposal. Standard (or original) foam extinguishers are formulated with AFFF (aqueous film-forming foam); this is a ‘forever foam’. It is non-biodegradable, and many health problems have been linked to the chemicals involved. These factors have led to changes in legislation and the popularisation of fluorine-free foam (FFF). Now, foam extinguishers have NOT been banned. They will EVENTUALLY be phased out, and those using PFOA have been fully banned and off the market for some time. The standard foams contain PFAS, which is under the legislative microscope but is not currently banned (April 2026).
We cover these issues in greater detail across three prior articles (all linked below), so for now, I’ll address the question directly. There isn’t really a reason not to switch to Fluorine-free Foam, aside from the price tag. FFF extinguishers are going to be more expensive than their direct AFFF counterparts; if you find a cheaper one, it’s more than likely a scam. You’re smarter than that, but maybe you still want some better reasons to make the switch.
Environmental friendliness is a big one; this is good even if it’s just for your peace of mind. It may also help the reputation of your business or organisation to push eco-friendly fire safety practices. In a similar vein, you will also be future-proofing your business. If standard foam extinguishers do get banned, you won’t be in any trouble for owning them. But you’ll still be saving yourself some trouble if you switch to fluorine-free now.
And lastly, just in case it needed to be said. Fluorine-free Foam Extinguishers will almost always match the fire ratings of their AFFF counterparts. You won’t be compromising on functionality in any way if you choose to make the switch.
The Legacy and Ancestry of Fluorine-free Extinguishers
Aside from powder, there are other extinguisher types that match the fire ratings of foam extinguishers. Some of these are foam-based and fluorine-free, despite potentially predating the introduction of explicit FFF extinguishers.
Firexo ‘all-fires’ extinguishers are quite a unique case (covered in detail here). There’s no catch here, meaning they handily cover Class A and B fires. They use a bespoke, patented extinguishing agent that has a foam-like consistency. To call it foam directly would be a tad dishonest, but it is very similar. What makes this more notable is that it is free from both PFOA and PFAS chemicals and is very easy to wipe away after use. As such, they avoid all the negatives of foam extinguishers without explicitly labelling themselves as fluorine-free (even though they are).
Another prominent example is Lithium-ion Battery Extinguishers (more on these here). These are specially designed to tackle the growing and already abundant threat of lithium-ion battery fires. These batteries are found in large quantities in almost every handheld device and electric vehicle produced in the last decade. If you want an idea of the scale of the risks and how you can mitigate them, then I would urge you to read this article. The point is that the threat is large enough that designing an innovative fire extinguisher specifically for them was deemed a necessary investment.
Lith-ion extinguishers typically use a water-based extinguishant with foam additives. But once again, they are fluorine-free. Due to the nature of lithium-ion battery fires, you really do want a specialised extinguisher; even the Firexo isn’t a reliable solution for this. So it’s good to know that the only extinguisher built specifically for these fires is a fluorine-free, environmentally friendly one.
Closing Words
So that’s about all I’ve got to say about Fluorine-free Foam Extinguishers. We’ve talked about exactly how they work, why they exist, why you would want to use them over the standard foam varieties, and even the impact and presence they have in other extinguisher types. Beyond that, there’s really not much to say.
But if you were to take anything away from this article, let it be this: You do not have to own fluorine-free foam extinguishers, not yet at least, and there are other options that fulfil the same needs.
However, they are an effective, eco-friendly, and safety-conscious alternative to a substance that is the subject of controversy. You’d only be doing yourself a favour by purchasing one. So, if you are interested, then please browse our range here, or check out the helpful video below for a more hands-on view. Thanks for reading!
Oh, and here are those articles about Fluorine-free Foam I mentioned earlier:
- Should you Still Buy a Foam Fire Extinguisher?
- The Truth About Foam Fire Extinguishers?
- Why you Need a Wheeled Foam Fire Extinguisher
