LTWHOME 2PCS Pre-Filter Fit for Dyson DC30, DC31, DC34, DC35Animal, DC44 Digital Slim Blue Motor Filter, Compare to Part # 917066-02 Package Include: 2pcs pre motor filter Washable and Reusable Change every 3 to 6 months Compare to Part # 917066-02,91706602. Fits DC30 Standard,DC31 Standard,DC31 Animal,DC31 Animal Exculsive,DC34 Animal,DC34 Animal Exculsive,DC35 Multi Floor, DC44,DC56