Features: Brand new and high quality 1 True HEPA Filter + 2 Carbon Booster Pre-Filter. Designed to fit aer1 air purifiers，Replaces AFilter，DFilter，KFilter. Compare to aer1 hepa-type total air filter HAPF30AT. Suitable for UNITS：BAP260, BAP815, BAP825, BAP9200, BAP9700, BAP520, BAP 9417, BAP9427, BAP9435 Package may vary. Suitable for UNITS：CAP531-U，CAP529-U，HAP240，HAP242，HAP412，HAP422，HAP424，HAP702，HAP706，HAP716，HAP1702，HAP2400，HAP9240，HAP9241，HAP9242，HAP9243，HAP9412，HAP9413，HAP9414，HAP9415，HAP9422，HAP9423，HAP9424，HAP9425. Absorbs household odor from pets, cooking and smoking. And traps larger air contaminants like hair and lint. Captures 99. 97% of pollutants as small as 0.3μm such as dust. True HEPA Filter keep your air purifier working at its full capacity. Specifications: Material:Carbon cotton Size:Approx.253x118mm/9.96x4.64inches Package Includes: 1x True HEPA Filter 2x Carbon Booster Filter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.