The filter can filter Micrometre-level dust to prevent secondary pollution. It can be disassembled and cleaned independently, with low replacement cost. Use full-size HEPA filters to improve filtration efficiency The integrated bag has a firm neckline, rubber bag seal and sanitary dust cover to prevent spillage.Applicable model: Dust bag: WD3200WD3300. WD3500, etc., filter: A2004/A2054/A2204/A2656/WD2250/WD3200/WD3300, etc.Colour:Brown+yellowMaterial:HEPA+paper bagSize:Dust bag: 81 x 22cmFilter: 122 x 115cmPackage Contents:5 x dust bags1 x filterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.