Ozone is most effective in pools when the sanitation system is properly sized and installed. Pool ozone systems can be installed as either the primary sanitation system or as a secondary system to supplement an alternative sanitizer. The use of ozone prevents the formation of chlorine or bromine containing byproducts, like chloramines and trihalomethanes. Ozone will even breakdown already formed unwanted chlorinated byproducts. This will reduce problems with red eyes and respiration problems. Ozone will give a sparklier and clearer bathing water.