HEPA filters are better at removing bigger, physical particles like pollen, dust , mold, and other . Carbon filters are better at removing odors, smoke, and other gaseous particles. H13 HEPA Filter with Premium Quality: Manufactured from high-grade non-woven fabric and activated carbon, the H13 HEPA filter has undergone advanced lower energy consumption technology resulting in a less dense structure for higher efficiency and lower pressure. This energy-saving feature improves overall performance while prolonging service life. Preserve the efficiency of your Mi filter by replacing it every 6-12 months. Over time, the filter's cleaning performance diminishes, possibly causing secondary air pollution. Type:Air Purifier Filter Compatible with model:Item for Air Purifier AP-1216L Colour:As Shown Material:composite materials Package Contents: 1 * Air Purifier Filter 4 * zeolite Only the above package content, other products are not included. Note: Light reflection 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.