... only oxygen.Applications:Drinking water treatment, Spring water treatment ozone generator, Vegetable and fruits wash machine, Chemical oxidation, Decolor ... bleachozone machine, Mariculture equipment, Mariculture ozone generator, Aquaculturewater sterilization ozone generator, Aquaculture equipment, Remove algaequipment, Aquaculture ozone generator, Aquaculture recycle water treatmentequipment, Raw ...