1.Compatible Model: This PH01 air filter replacement compatible with Dyson PH04 PH03 PH02 PH01 TP10 HP10 HP09 TP09 HP07 TP07 HP06 TP06, Part No. 970341-01 2.Excellent Filtration: The upgraded 2-in-1 filter works alongside the high-efficiency activated carbon pre-ilter to capture up to 99.97% of particles as small as 0.03 microns and decomposes unpleasant household odors and wildfire gases. 3.Super Craft: PH04 PH03 PH02 PH01 TP10 HP10 HP09 TP09 HP07 TP07 HP06 TP06 filter element for Dyson air purifier is made of composite filter paper and activated carbon, using advanced low energy consumption and low density structure technology, to ensure high purification efficiency while minimizing the obstruction to air flow, which can ensure the maximum filtration effect. The high efficiency filter uses upgraded electrostatic electret filtration technology, which saves energy and has a longer life 4.2-IN-1 Filter: This 360° combi glass filter for the Pure Cool Hot Humidify fan combines HEPA and carbon filters into a single piece, making installation and maintenance even more convenient. (Replacement Part #970341-01)