The filter can filter micron-level dust to prevent secondary pollution. It can be disassembled and cleaned independently, with low replacement costs. Use full-size HEPA filters to improve filtration efficiency. The integrated bag has a fixed neckline, rubber bag seal and hygienic dust cover to prevent spills. Applicable model: Dust bag: Karcher WD3200.WD3300. WD3500, etc., filter: KARCHER Karcher A2004/A2054/A2204/A2656/WD2.250/WD3.200/WD3.300, etc. Color: Brown+yellow Material: HEPA+paper bag Size: Dust bag: 81 x 22cm Filter: 12.2 x 11.5cm Package contents: 5 x dust bags 1 x filter Only the above package content, other products are not included. Note: Light shooting 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. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time depends on circumstances. Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply to you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.