General Description Made of HEPA filter paper, these filters offer up to 99% purification efficiency, ensuring healthier air. They are easy to remove and replace during routine maintenance, helping to maintain the cleaning performance of your Dyson DC19, DC20, DC21, and DC29 vacuum cleaner while reducing the infiltration of dust, pollen, and other allergens. It is recommended to replace the filter every 2 to 3 months for optimal operation. Technical Specifications Item Type: Vacuum Cleaner Parts Material: HEPA Filter Paper + Plastic Diameter: Approx. 152mm Main Functions: Filters dust Compatibility & Accessories Compatible with Dyson vacuum cleaners DC19, DC20, DC21, DC29 Contents: 1 washable HEPA filter and 1 pre-filter Installation To clean the filter, follow these steps: Remove the bin by pressing the release button Open the bin door to empty it Squeeze and lift the filter or release tab Remove the filter by grasping the yellow tab Tap the filter against the bin to remove dust To