The water through a dental chair is required to be bacteria free, ready for use by patients to rinse out their mouths, or by dentists during procedures. Dentist chair lines are prone to a build-up of deposits due to thin connections and circulating water, which leads to bacteria growth that risks patient contamination. Deposit build up can also cause damage to apparatus, reducing it’s the service life and making equipment, such as drills, unsafe to use.
In light of this, ultra-pure water is required for the patient feed to ensure there is no particle build up or bacteria exposure. To purify water to this level, particulates and organics need to be removed from the water before the reverse osmosis stage. This will enhance the filtration by removing ~99% of bacteria, ions and dissolved solids from the water. A polishing stage is then required that uses deionisation resin to remove all ions and salts, before directing the water through a final Ultraviolet sterilisation system to kill any remaining bacteria and inhibiting its future growth.