The motor protection filter eliminates unpleasant odors and protects your Vorwerk Kobold Motor.Thus, you ensure that the filter keeps the optimum effect at all times and protects your engine.If the filter gets too dirty, it will not let any air through. The engine overheats because it does not get enough air for cooling. By regularly changing you avoid expensive consequential damage.Suitable for: Vorwerk Kobold 135 Vorwerk Kobold 136This filter should be changed every 6 monthsColor: image colorMaterial: composite materialPackage contents:6 x pieces of motor protection filterOnly the above package content, other products are not included.Note: Light 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.