Fluoride is a naturally occurring mineral — the ionic form of the element fluorine. In very small concentrations, it strengthens tooth enamel and reduces decay. That's the reason Australian governments started adding it to public water supplies in the 1960s, and why the practice continues today.
The typical concentration of fluoride in drinking water across Australia is 0.6–1.0 mg/L, depending on your state and local utility. The NHMRC recommends an optimal level of 0.6–1.1 mg/L for dental health.
Fluoridation isn't unique to Australia — it's practiced in the US, UK, Canada, and Ireland. But most of continental Europe — including Germany, France, the Netherlands, Sweden, and Switzerland — has chosen not to fluoridate, or has stopped. Different countries, different conclusions from the same body of evidence.
Almost everywhere. If you're on a town water supply in a capital city or major regional centre, your water almost certainly contains added fluoride.
New South Wales
0.6–1.0 mg/LSydney and most regional centres have fluoridated since the 1960s, covering the vast majority of the population on town water.
Victoria
0.7–1.0 mg/LMelbourne's water has been fluoridated since 1977. Most regional towns across the state also add fluoride to their supply.
Queensland
0.6–0.8 mg/LBrisbane and the Gold Coast have fluoridated since 2008. However, when the state mandate was repealed in 2012, several regional councils — including Cairns and Bundaberg — opted out.
Western Australia
0.7–0.9 mg/LPerth and the greater metro area fluoridate their water supply. Most major regional centres in WA also add fluoride.
South Australia
0.7–1.0 mg/LAdelaide has been fluoridated since the early 1970s, along with most regional towns across the state.
Tasmania
0.7–1.0 mg/LThe first Australian state to introduce fluoridation, starting in the 1960s. Hobart and statewide supplies are fluoridated.
ACT
0.7–1.0 mg/LCanberra's water supply has been fluoridated since 1964. As a single jurisdiction, coverage is essentially universal.
Northern Territory
0.6–0.8 mg/LDarwin and Alice Springs fluoridate their water supply. Some remote communities on bore water are not fluoridated.
If you're on tank water or bore water, your supply is not fluoridated (though it may contain naturally occurring fluoride at varying levels).
This is a topic where reasonable people disagree — and where the evidence itself is still evolving.
We're not here to tell you what to think about fluoride. We built a filter that removes it — but we believe you deserve the full picture first.
This is where most people get stuck when searching for a fluoride filter. Fluoride in water isn't a particle. It's a dissolved ion — a single fluorine atom carrying a negative charge at the molecular level. It behaves differently to the contaminants standard filters catch.
Carbon filters
Jug and tap filters use activated carbon. Great for chlorine, but fluoride ions don't bond to carbon.
Ceramic filters
Trap particles by pore size. Fluoride ions are far smaller than ceramic pores.
Boiling
Water evaporates. Fluoride stays. You get a higher concentration in less water.
UV purification
Kills bacteria with UV light. It disinfects — doesn't remove anything.
Activated alumina
Can reduce fluoride but varies with pH, flow rate, and temperature.
Reverse osmosis
0.0001µm membrane. The only consumer tech that removes fluoride to near-undetectable levels.
Reverse osmosis forces water through a semi-permeable membrane with pores of 0.0001 microns. A human hair is ~70µm. A bacterium is 0.2–2µm. The membrane's pores are small enough to physically block dissolved fluoride ions.
It's the same technology used in kidney dialysis, pharmaceutical manufacturing, and desalination. At the molecular level, it's a physical filter — if a molecule is larger than the membrane's pores, it doesn't get through. If you need a water filter that removes fluoride, this is the technology.
These aren't marketing numbers. They come from Equinox Labs, an independent testing facility, testing our Countertop Reverse Osmosis Water Filter in April 2025.
| Method | Technology | Fluoride removal | Verified? |
|---|---|---|---|
Reverse osmosis |
RO membrane (0.0001 µm) | >99% | Lab verified |
Carbon tap filter |
Activated carbon block | ~70% | Lab verified |
Jug / pitcher filter Standard carbon | Carbon cartridge | ~0% | Cannot remove |
Ceramic filter Ceramic element | Pore-size filtration | ~0% | Cannot remove |
Boiling Heat | Evaporation | Concentrates it | Makes it worse |
UV purification Disinfection | Ultraviolet light | 0% | Does not remove |
If you're looking for a fluoride water filter that actually works, reverse osmosis is the only consumer technology that delivers near-total removal. Our EcoPro tap filter partially reduces fluoride (~70%), but if you want it gone — you need Countertop Reverse Osmosis.
The same membrane blocks a wide range of contaminants. Independent testing (Equinox Labs & Laboratorio Echevarne, 2025):
Yes — and that's a fair criticism. Standard reverse osmosis removes everything, including beneficial minerals.
That's why we built a 7th stage. After the membrane strips everything out, water passes through our Swedish Mineral Rock™ — a natural rock that reintroduces calcium, magnesium, and potassium and raises pH to 7.5–8.5.
The result: water purified to near-laboratory standards, then enhanced with minerals. Tastes like premium mineral water — not distilled nothing.
Traditional under-sink systems need a plumber, drilling, and $300–$1,000+ installation. You can't take them with you when you move.
| Feature | Tappwater Countertop RO | Under-sink RO |
|---|---|---|
| Installation | None — plug in and pour | Plumber required, drilling |
| Install cost | $0 | $300–$1,000+ |
| Renters | Yes — no modifications | No |
| Portable | Take it when you move | No |
| Fluoride removal | >99% | >99% |
| Waste ratio | 3:1 (efficient) | Varies (often 1:1 or 2:1) |
| Hot water | Yes, up to 95°C | No |
| Remineralisation | Swedish Mineral Rock™ | Rarely included |
| Filter swap | DIY, 30 sec, no tools | Often needs technician |
Our Countertop Reverse Osmosis is $799.99 upfront ($949.98 Best Value pack). Replacement cartridges: $199.99/year — $0.55/day.
| Option | Annual cost | Removes fluoride? |
|---|---|---|
Tappwater Countertop RO | $199.99/yr (after $799.99 unit) | Yes — >99% |
Bottled water | ~$1,560/yr (2L/day) | Varies — adds microplastics |
Jug filter | ~$80–120/yr | No |
Under-sink RO | ~$200–500/yr + $300–$1k install | Yes |
Whole-home filtration | ~$500+/yr + $300–$5k install | Some, partially |
A 2024 study in the Proceedings of the National Academy of Sciences found 240,000 microplastic particles per litre in bottled water. Trading fluoride for microplastics isn't much of a trade.
Ready to remove fluoride from your water?
Countertop Reverse Osmosis. >99% fluoride removal. No plumber. No drilling. Plug in and pour.
Shop Reverse Osmosis Filter See full lab results →