Compatible With: for FY1413 FY1410 Air Purifier Replacement Filter Set compatible with 1000 and 1000I. [True Heap Filter]: Can captures up to 99.97 Percent of particles that pass through the filter as small as 0.3 microns [Help Improve Health]: True HEPA & Activated Carbon Filters Set Also removes ultra-fine particles as small as 20 nanometers or 0.02 microns - 2500 times 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 [Properly sealed]: Filters are sealed to protect their . It is recommended to replace air filters every 6 months. Remove filters from packaging before placing them into air purifier Material:Composite material colour:Photo Color Package Contents: 1 * filter 1 * Activated carbon mesh 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.