Dyson 360 Combi Glass HEPA filter + carbon fiber air purification filter. Genuine Dyson filters capture 99.97% of particles as small as 0.3 microns – as small as allergens and viruses. Using only genuine Dyson filters ensures a sealed 360° filtration system, HEPA standards, and proper device operation. Compatible with DP04, Graded HP09, HP04, HP07, HP09, PH03, PH04, PH3A, TP04, TP07, TP08, TP09, TP7A models.