1. Made of high quality material, more durable. 2. Fine preliminary Filter traps larger particles in the air like dust, hairs, pet fur, lint and more 3. HEPA filter is made of high-strength environmental-friendly materials, which can block most of dust down to 0.3 micrometer. The filter can maintain the cleaning performance of the sweeper, while reducing the penetration of dust, pollen and other allergens into the air you breathe 4. Premium grade HEPA filter captures 99.97% of airborne particles down to 0.3 micrometer in size 5. Easy to replace and disposable, no tools required. replace filters every 6 months for optimal performance. Model:For DEWALT DCV501LN/DCV501HB Type:Vacuum Cleaner Accessories Quantity:6Pcs Colour:Black-White Material:plastic Size:88x71mm Package Contents: 6 * HEPA Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.