1. Wide Compatibility: Compatible with Dyson Hot and Cool series: PH01, PH02, PH03, PH04, HP06, TP06, HP07, TP07, HP09 2. Easy to install: 2 in 1 replacement. Just reset the filter once instead of twice, no complicated installation needed. 3. Washable and reusable to save your wallet and protect our earth. Make sure that it is completely air dried out before reusing. 4. To improve the vacuum suction, it is better to replace it every 3-6 months or depends on your usage. 5. Upgraded filtration system: HEPA filter and activated carbon filter 2 in 1
