air purifier No filters to replace Silent, no fan or motor Low power consumption One year warranty air purifier1,Use high-quality enamel ... plug-in design, easy maintenance, reliablity;4,Use Ozone-specific air pump, longe-lived and good stability; 5,Origin ABS ... to prevent diseases from spreading.9).It extremely purifies the air and removes toxic substances including the bacteria, lampblack and odors ...