Here's a new instructional video just created entitled "How to Build a Countertop Fluoride Water Filter." It covers the assembly of a portable water filter using a 2" x 10" inline water filter cartridge, inlet and outlet fittings and a diverter that connects to a kitchen faucet. The cartridge used is specially manufactured for removing fluoride, chlorine, heavy metals (arsenic, lead, chromium 6, mercury) and pesticides using KDF (copper/zinc), GAC (coconut shell carbon) and activated alumina (removes 80 to 90 percent of the fluoride). The filter can last up to 12 months.
Fluoride is added to most US municipal water systems in the form of sodium fluoride, fluorosilicic acid, or sodium fluorosilicate in levels up to 1.4 ppm to prevent tooth decay. Above 4 ppm is considered unsafe and can damage teeth, wearing away the enamel. In recent years, some health professionals and scientists have questioned the safety of any amount of fluoride added to drinking water, and for that reason, a number of filter manufacturers started offering systems to reduce or remove fluoride.