1. Double efficient non-woven dust bag, double filter dust, high filtering efficiency 2. Disposable use, environmental hygiene 3. Material: non-woven fabric 4. Applicable area: 51-100 square meters 5. For Miele Classic C1/Complete C2/Complete C3/S400 - S456i/S600 - S658/S800 - S858/S2000 - S2999/S5000 - S5999/S8000 - S8999 so on 6. Function: absorb dirt and dirt, effectively inhibit the survival of bacteria 7. Note: the disposable dust bag is recommended to be replaced with 2/3 full of dust. Because the non-woven fabric has strong dust adsorption performance, please place it in the packing box for dust prevention before use