10 Best Fluoride Water Filters 2025 in the United States

The ZeroWater Official Replacement Filter is a solid choice for those seeking high-quality water filtration. It uses a 5-stage ion exchange filtration method which effectively removes virtually all dissolved solids, including metals, minerals, salts, and ions, resulting in very pure water. The filter is IAPMO certified, meaning it has been tested and proven to reduce harmful contaminants like lead, chromium, and PFOA/PFOS. Additionally, the filter is made from BPA-free plastic, ensuring no harmful chemicals are released into your water.

The Aquasana SmartFlow® Reverse Osmosis system is an under-sink water filter designed to remove up to 99.99% of 90 contaminants, including fluoride, lead, PFAS, arsenic, and chlorine. It uses a patented SmartFlow technology, which improves efficiency by producing more purified water with less waste compared to traditional RO systems. This system is WQA certified to meet several NSF/ANSI standards, ensuring reliable contaminant reduction and safety. The flow rate is moderate at 0.8 gallons per minute, which should be sufficient for typical household needs without being too slow.

The Purewell 8-Stage Ultra-Filtration Water Filter is a countertop gravity system designed to reduce fluoride, chlorine, and other contaminants. It uses advanced composite filters including a 0.01μm hollow fiber membrane and special fluoride reduction membranes that can remove about 90% of fluoride without harmful alumina materials. This is a strong choice if fluoride reduction is a priority. The system works without electricity, relying on gravity, which makes it easy to use indoors or outdoors but means the flow rate depends on how quickly water filters through, so it’s slower than electric options.