... it can avoid the secondary pollution.4. Ozone is used for water disinfecting, dispeling the peculiar smell, air purification ... and the anticorrosion and freshness to the food. disinfection for the kitchen, dining hall, kitchenware, refrigerator, dish shelf ... disease.9. Convenient for use, can be moved to different rooms for disinfecting and purifying. ozone generator for sale used in water treatment