Fluoride in drinking water
Fluoride water filters certified to reduce 99.7% of fluoride
Culligan with ZeroWater Technology pitchers and dispensers are IAPMO certified to NSF/ANSI 53 to reduce 99.7% of fluoride, plus lead, Total PFAS and more.
Shop water filters certified to reduce fluoride
Every Culligan with ZeroWater Technology pitcher and dispenser uses the same 5-stage filter, IAPMO certified to NSF/ANSI 53 to reduce 99.7% of fluoride. Legacy ZeroWater filters and Culligan with MaxClear Technology gravity systems are not certified to reduce fluoride.
Fluoride in water, explained
Fluoride is a naturally occurring mineral that can be found in groundwater and is also added to some municipal water systems. Many communities add fluoride to drinking water as part of public water treatment programs.
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Naturally occurring mineral
Fluoride can enter groundwater as water moves through rock and soil containing natural fluoride deposits.
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Municipal water treatment
Some water systems add fluoride during treatment to support community dental health programs.
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Filtration options
Certain water filtration systems are certified to reduce fluoride and other contaminants commonly found in drinking water.
Culligan brings the proof
| Certified to reduce |
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| Fluoride | ||
| Lead | ||
| Total PFAS | ||
| Nitrates | ||
| Chloramine | ||
| Microplastics | ||
| Pharmaceuticals | ||
| Pesticides | ||
| Chlorine |
Water filter pitchers & dispensers certified to reduce fluoride
Culligan with ZeroWater Technology pitchers and dispensers use a 5-stage filter certified to reduce 99.7% of fluoride under NSF/ANSI 53, along with lead, Total PFAS and the other contaminants on the Performance Data Sheet.
Replacement filters for certified fluoride reduction
Genuine Culligan with ZeroWater Technology replacement filters help maintain certified contaminant reduction performance. Replace every 20 gallons. Older ZeroWater filters do not fit these systems and are not certified to reduce fluoride.
Culligan with ZeroWater Technology Filter
Why certification matters for fluoride reduction
Independent certification verifies that filtration systems meet established performance standards. In IAPMO R&T testing against NSF/ANSI 53, water containing 8.0 mg/L of fluoride was filtered to 1.0 mg/L or less, an average 99.7% reduction.
Legacy ZeroWater Technology
Legacy ZeroWater Technology filters were designed for earlier pitchers and dispensers. Newer systems use updated filtration technology, so the two filter types don’t mix and match.
You likely have legacy technology if:
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Bottom-threaded installation
The filter screws into the bottom of the upper reservoir.
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ZeroWater logo
Your pitcher or dispenser will feature the ZeroWater logo.
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Removable lid
The entire lid must be removed to refill your pitcher or dispenser.
Fluoride water filter FAQs
Culligan with ZeroWater Technology pitchers and dispensers are IAPMO certified to NSF/ANSI 53 to reduce 99.7% of fluoride. Older ZeroWater filters and Culligan with MaxClear Technology gravity systems are not certified to reduce fluoride.
It depends on the filter. Culligan with ZeroWater Technology filters are certified to reduce 99.7% of fluoride. Older ZeroWater filters are not. See how to tell which you have.
Not all of them. Culligan with MaxClear Technology gravity water filter systems are not currently certified to reduce fluoride. For certified fluoride reduction, choose a Culligan with ZeroWater Technology pitcher or dispenser.
Fluoride occurs naturally in groundwater, and many public water systems add it to help prevent tooth decay, typically at the U.S. Public Health Service recommended level of 0.7 mg/L.
Replace your Culligan with ZeroWater Technology filter every 20 gallons. Certified performance is based on that rated capacity.
Check your water utility's annual Consumer Confidence Report, or have well water tested by a certified lab.