... plug-in design, easy maintenance, reliablity;4,Use Ozone-specific air pump, longe-lived and good stability; 5,Origin ABS ... the ozone sterilizer, no chemical component rudimental on the food, so the food is clean and healthy.3).Better result for washing ... to prevent diseases from spreading.9).It extremely purifies the air and removes toxic substances including the bacteria, lampblack and odors ...