Usage Tips:Compatible With: FY2423/40 Air Purifier Replacement Filter Set for 2000 and 2000I. True Heap Filter: Can captures up to particles that pass through the filter as small as 0.3 micrometre. Help Improve Health: True HEPA & Activated Carbon Filters Set Also removes ultra-fine particles as small as 20 nanometers or 0.02 micrometre - 2500 smaller than a - from the air that passes through the filter. Active carbon filter: With extra-strong honeycomb structure effectively reduces gases and odors from the air that passes through the filter, Perfect for anyone wanting to improve air quality. Properly sealed: Filters are sealed to protect their lifetime. It is recommended to replace air filters every 6 months. Remove filters from plastic packaging placing them into air purifier. Colour: black Material: plastic Size: 36x4.5x27.5cm Package Contents: 1 * HEPA filter 1 * Activated carbon filter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.