It is a electrically operated DC Corona discharge type. Using high Internal voltages, it generates ions with a high parity balance. Completely safe, it is convenient for use in laboratories of all types. Unlike some electronic solutions, the Intelligent Ionizer does not create a large “wind” or draft, thus reducing the effect on your weighing result of high resolution balances. it is portable, safe, clean and easy to use. It can cover a large area, (up to 700mm / 27”) away from the unit, making it ideal for laboratories. It has an extremely long life and should not need to be replaced in decades, therefore the initial expense can be amortized over a much longer period. Works with all Intelligebt-Lab™ Models. Free Shipping