HEPA filters are better at removing bigger, physical particles like pollen, dust mites, mold, and other allergens. 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.<br><br>Type:Air Purifier Filter Compatible with model:Item for Coway Air Purifier AP-1216L Colour:As Shown Material:composite materials<br><br>Package Contents: 1 * Air Purifier Filter 4 * zeolite<br><br>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.