Filter,HEPA,active carbon,ari passage,fan and motor,installation board,TiO2 photo-catalyst,UV,baffe,Nano frame,dust sensor ... the same time, there are energy saving, environmental protection and humanization in the product. It can filtrate powder particulate, ... 6. Centrifugal fan7. Motor 8. Electrical machinery shelf9. Installation board 10. Universal wheel11.Back cover 12.Socket13.Rear cover 14 ...