Compatibility: Compatible with Dyson V6 DC58 DC59 DC62 DC72 DC74 SV03 SV04 SV05 SV06 SV07 SV08 SV09 cordless vacuum cleaners Air Filtration: The HEPA pre- and post-filters are made of high-quality and environmentally friendly porous fabric, have been thoroughly tested by the manufacturer, and offer sufficient retention, higher efficiency, and the best quality for excellent performance and a longer service life. Washable and Reusable: We recommend replacing the filter every 2 to 3 months, but this usually depends on how often you use it. In addition, the vacuum cleaner filters can be hand-washed in warm water and dried completely before use. Package Contents: 3 Pre-Motor Filters 3 Post-Motor Filters