Short answer: yes, if it's a reverse osmosis system. Waterdrop's RO models — including the G3P600, G3P800, and N1 — remove fluoride through the RO membrane. Here's the data.
Reverse osmosis membranes remove fluoride (a negatively charged anion) along with other dissolved contaminants including TDS, PFAS, lead, arsenic, nitrates, and radium. Waterdrop's RO membrane achieves 91.9% TDS reduction (NSF 58 certified), which includes fluoride.
Fluoride is a dissolved ionic compound (F⁻). Most water filters — pitcher filters, carbon filters, even some multi-stage under-sink systems — can't remove dissolved ions because their filter media physically can't block particles that small.
Reverse osmosis works by forcing water through a semi-permeable membrane with pores measured in nanometers — small enough to block fluoride ions, heavy metals, and other dissolved contaminants. This is why RO is the only residential technology that reliably removes fluoride.
Waterdrop's NSF 58 certification covers TDS reduction at 91.9%. Fluoride removal by RO typically runs 85–95% depending on source water pressure, TDS levels, and membrane condition. For a source water with 0.7 ppm fluoride (the US recommended level), the G3P600 output would typically be 0.04–0.1 ppm.
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