Filter dust, filter the exhaust air, protect the vacuum cleaner motor,Filters particles such as smoke particles, pollen, dust, etcMotor filter filter washable,Super performance for more cleanliness.If this filter is dirty, the suction power will drop and the motor can easily overheat.The washable foam strainer must be washed every 2 weeks and replaced every 6 months,This filter must be changed regularly.Simply wash the foam filter under running water or in the washing machine for lasting performanceColour: as shownMaterial: PlasticSize: 9cmPackage Contents:4 x 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.