PureSure® is a unique technology where a double purification pack and monitoring system ensures accurate results with uninterrupted workflow. Deionization processes in which ion exchange resins are used to retain impurities within a cartridge have a finite capacity for the impurity. Once that capacity is reached, traces of weakly-ionized impurities will begin to elute into the product water and finally (once the concentration is sufficient) the product water resistivity will fall from 18.2 MΩ.cm ELGA's PureSure technology prevents this from happening.
A twin-bed ion exchange process with interstage resistivity monitoring allows retention of any impurity released during exhaustion of a primary cartridge, by the secondary polishing cartridge. This method gives guaranteed, optimum, product water quality, advanced warning of consumable change and extended consumable service life.