As the flat-fold filter is stored in a box, it can be changed easily and quickly - completely without contact with dirt . The case can simply be unlocked from the outside and removed - done. The dirt is kept safely in the box and does not spill onto the floor. Flat folded filter, suitable for wet and dry vacuuming without changing the filter. Designed for multipurpose vacuum cleaners from the WD 4 to WD 6 product line. Technical data: Quantity 1 Weight (kg) 0.1 Weight including packaging (kg) 0.1 Dimensions (LxWxH) (mm) 163 x 104 x 50 Vacuum cleaners play a key role in maintaining cleanliness and hygiene in households, which has a direct impact on the health of residents. By removing dust, allergens and other micro-particles from floors and surfaces, they help reduce the risk of respiratory problems and allergic reactions. In addition, modern vacuum cleaners with HEPA filters can capture even the smallest particles. Try other Kärcher products, which you can find in the Electrical, Home care and Vacuum cleaners categories. If you are not sure about the choice of this product, get inspired in the category Accessories for vacuum cleaners.