Delta ion has taken every step to ensure patient safety. Each new dialysis facility is designed to deliver “ ultra pure” water. during each dialysis treatment, the patient’ s blood is cleaned across an artificial kidney membrane with a cleansing solution ( dialysate) made from purified water. Current standards in the united states recommend that the water not contain more than 200 colony forming units of bacteria per milliliter ( ml) of water and less than 2 endotoxin units per ml of water