Perfectly compatible: Compatible accessories for Dyson DC19, DC20, DC21, DC29 vacuum cleaner Purified environment: prevents the circulation of allergens in the air of your home, retains dust, pet hair, mites, etc. High quality: The replacement parts compatible with the Dyson vacuum cleaner are designed, tested and manufactured for a long service life thanks to the use of high-strength materials. The kit includes: 2 compatible filters Maintenance: to ensure the efficiency and proper functioning of your Dyson vacuum cleaner, we advise you to replace the HEPA filters at regular intervals. Replaces: Dyson: 900228-01, 917819-01 Scope of delivery: 2 filters Replacement filter for vacuum cleaner. Products certified by an Italian company that, before placing them on the market, tests their quality and durability. Item delivered with warranty and possibility of return. Please note that the compatible spare part is not genuine and the manufacturers' names and model numbers have been used for reference purposes only. During normal maintenance, spare parts can be easily removed and replaced. It is best to replace the spare parts every 2-3 months to keep the machine running at its best performance. Note: This is not a genuine Dyson product. This is a compatible spare part. If you are looking for genuine or original parts, do not place your order. Note: The Dyson brand names and logos are registered trademarks of their respective owners. Any use of the Dyson brand name or model for this product is for purposes of demonstrating compatibility only. Polj, your supplier of compatible vacuum cleaner parts.