During the operation of the vacuum cleaner, a certain amount of dust is returned to the room, usually these are the smallest particles. The filters of the Karcher vacuum cleaners help to reduce the level of air pollution, with special filters that capture even the smallest dust particles. The exhaust fine filter is mounted on the outlet inside the vacuum cleaner and is designed to release hygienically clean air. A high-efficiency HEPA filter is used as such a filter. The Karcher filters are made of high-quality materials. The flat pleated filters of the Karcher vacuum cleaners ensure a cleaning efficiency of up to 99.9%. The filters provide effective air purification by significantly reducing dust, pollen, pet droppings and other allergens in the air you breathe. They can be easily removed and replaced as part of your daily maintenance. Recommendation: In order for your vacuum cleaner to work at its best performance, the filters should be cleaned once a month and replaced every 2 to 3 months. Colour:As Shown Material:plastic Package Contents: 1 set * Filter Elements Only the above package content, other products are not included. Note: Light reflection 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.