Features: Made of high-quality materials, durable, safe and environmentally friendly. The activated carbon filter can effectively absorb impurities in the air, and the filtering effect is good. Easy to install, ideal for everyday home use, especially ideal for Dyson air purifiers. For best results, we recommend that you replace the filter every 3-6 months. This filter is for Dyson HP01 HP02 HP03 DP01 DP02 DP03. Specification: Condition: 100% Brand New Material: ABS, Activated Carbon Weight: Approx. 366g / 12.9oz Package Size: Approx. 226x226x170mm / 8.9x8.9x6.7in Product Size: Approx. 215x215x158mm / 8.5x8.5x6.2in Package List: 1 x Air Cleaner Filter Note: 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard..