Wash with warm water and air dry thoroughly before reuse. A mild detergent can be used if desired. To ensure your vacuum cleaner is working properly and in perfect condition, it is recommended to replace the filter every 6 months. The high-quality vacuum cleaner filter has a two-in-one design that captures small particles and can effectively block floating dust. The filter is made of high-efficiency filter material, which can effectively filter dust, etc., prevent large dust particles from entering the motor, and ensure the long service life of the Dyson vacuum cleaner. Filters should be replaced every 4 to 6 months. If you have pets, shorten the time to improve dust removal efficiency.