... .Auto testing of air quality, intelligent functions, humanized design;6. UV-LED stimulation technology;7. Anion generator;8. RCD to remove ... usage of static adsorption device after cleaning, low operation cost. 6. Auto testing of air quality, intelligent functions, humanized design. ... designing, low noise. 13. LCB system stimulated by UV LED, 5 to 8times lifespan but 40% energy saving than ordinary ...