This filter protects your vacuum cleaner motor from dust particles. If it is broken, you will need to replace it to maintain the strong airflow and suction of your vacuum cleaner. For best results, replace the filter every few months. Vacuum with this filter for about three to six months. The filters provide good suction results while filtering dust, pollen and other allergens from the air. Also includes the opening and closing valve. Product Description Features: 1.Our wd2 filters for Karcher are manufactured with excellent filtering capacity and are also convinced by their high resistance to breakage and retain dust reliably. 2. The filter for Karcher is easy and quick to install in minutes and create another one immediately. 3. This cartridge filter for Karcher vacuum cleaner can be washed and used repeatedly, it is more economical. 4. Replace the filter of the Kärcher vacuum cleaner every 3 or 6 months. This extends the life of your Kärcher vacuum cleaner and ensures a comfortable