Features: EASY TO USE: Perfect fits and easy to install. Just remove your old filter and put new filter replacement in its place. WASHABLE FILTER: Wash the filter every 3 months and change the filter every 12 months or as needed, improve cleaning performance and the powerful suction of your cordless vacuum Cleaner. PURIFIED ENVIRONMENT: Prevents allergen from circulating in your home's airs, traps dust, pet hair, dust mite, and more. The vacuum cleaner compatible parts, are designed, tested and manufactured for long lasting durability through the use of high strength materials. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Size: As picture show Package: 1pcs Pre-Fliter, 1pcs Post Filter or 2pcs Pre-Fliter, 2pcs Post Filter Package List: 1 Set Vacuum Filter Replacement