... ionic air purifier;4. Photocatalyst system;5.Auto testing of air quality, intelligent functions, humanized design;6. UV-LED ... 3. High and new technology and high CARD.4. Excellent effect of removing formaldehyde, benzene, ammonia, and killing virus and bacteria. ... device after cleaning, low operation cost. 6. Auto testing of air quality, intelligent functions, humanized design. 7. Intelligentize design ...