Feature 1 Applicable Model: This replacement filter is applicable for Philips 800 series air purifier, compatible for AC0830 AC0810. 2 Efficient Filtration: The filter with activated carbon can captures 99.5% of particles greater than 0.003 m, effectively purifying. 3 Multi Layer Filtering: Built in multi filter layer for filtering pollen and dust in daily life, guarantee your health, practical and useful. 4 Long Usage Life: The filter as an important replacement part of the air purifier, can be used for up to 12 months with stable performance. 5 Easy Installation: The air purifier filter structure is sturdy and stable, easy to replace and install on the machine.Item Type: Air Purifier Replacement FilterMaterial: PP, PET, Activated CarbonFilter Particles: Greater than or equal to 0.003 microns Package List1 x Air Purifier Replacement FilterNoteIt is recommended to replace the filter at least every six months (more often in households with children, animals or smokers).