air purifier

1st stage: Pre-filter Remove 0.18 mm fiber particles, such as hair, dandruff, coarse and fine dust 2nd stage: Cold catalyst catalytic filter has been widely used in food, medicine, cosmetics and other fields. Remove a variety of bacteria and viruses,deodorant, anti pollution, and air purification 3rd stage: HEPA filter About 0.25 microns in diameter micro particle removal rate reached 99.7%, 4th Stage : carbon filter reduce the odor, the secondhand smoke, harmful gases and