... carbon,ari passage,fan and motor,installation board,TiO2 photo-catalyst,UV,baffe,Nano frame,dust sensor Product Parameter:Voltage ... middle and low wind speed operation. UV lamp and nanometer TiO2 aggregative NM photocatalysis sterilization principle. Negative ion refreshes air. ... 10. Universal wheel11.Back cover 12.Socket13.Rear cover 14. TiO2 Photo-catalyst15. UV Lamp 16. Baffle17. Activated carbon 18 ...