This revolutionary combination of UV-C and copper electrolysis means you can have a chlorine-free pool! With this Blue Lagoon UV-C Ionizer unit as part of your pool system you can keep your pool water fresh, crystal-clear and above all hygienically clean, without having to put chlorine or other chemicals in the water. Chlorine ensures that harmful bacteria cannot develop in your pool. Unfortunately chlorine also has unpleasant side-effects on the people who swim in the chlorinated water. Examples are irritated skin, stinging, blood-shot eyes, irritation of the bronchial tubes and of course the penetrating smell of chlorine. Children in particular do not realise that they must not get chlorinated water in their eyes because it will irritate them after swimming. Children with asthma also suffer greatly from chlorinated water, so that swimming can be less enjoyable for them. With the Blue Lagoon UV-C Ionizer this is completely a thing of the past.