... 1, LCD liquid crystal display the temperature, humidity, air quality grade, and three kinds of backlight: green, ... system transformation3,Activated carbon, negative ions, photocatalytic, ULPA filter, electric ion five heavy purification;Technical parameters:1, ... size: 190×160×45mm?5, Product weight: 600g6, Anion quantity: 10 million units7, Effective use of area: ... .W.: 18KG, G.W.: 20KG room air purifier