Three Ceramic Plates for Ozone GeneratorsCeramic Plates Every Odor Free ozone generator comes with 2, 3 or 4 plates, depending on the model. They are the heart of the unit and create the ozone. They easily slide out the back of the unit like a CD for cleaning every 3 to 4 months with regular use. Just wash with detergent or spray cleaner, rinse with hot water and dry completely. All ozone generators will require periodic cleaning of the ozone producing element. After 3 to 4 months of routine