General description Dyson DP04 HP04 TP04 Pure Cool™ HEPA glass filter and internal activated carbon filter is a genuine replacement part designed to enhance air purification. The 360° HEPA glass filter features 9 meters of pleated borosilicate microfibers, capturing 99.95% of harmful ultra-fine particles, including pollen and bacteria as small as 0.1 microns. Technical specifications Part number: 969048-02 Filter type: HEPA glass and activated carbon Filtration efficiency: 99.95% for particles up to 0.1 microns Dimensions: Size may vary by ±2 cm (±1 inch) due to manual measurement Compatibility and accessories Compatible models: DP04, HP04, TP04 (for Dyson Pure Cool air purifiers only)