Feature 1Effective Particle Removal: This filter cartridge effectively removes large particles and airborne particles common pollutants, including dust, particles, bacteria, dust, pollen, smoke, odors, pet dander, etc. 2Odor Removal: This filter efficiently and finely filters airborne microparticles, reducing unwanted odors in the living space. 3Easy To Install: This filter is very easy to install and does not require particularly complicated operations, providing comfort for you and your family, replacing it in minutes, without special tools. 4Easy Cleaning: This filter is very easy to clean, after you remove the filter from the machine, use a soft brush to brush off the dust. 5Applicable Model: This filter is suitable for Xiaomi new fan system A1 (MJXFJ 150 A1), and the composite wall mounted filter, containing a chip, can identify the matching cartridge.Item Type: Air Purifier FilterMaterial: High Efficiency Particulate AirWeight: Approx. 517g/18.2oz .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Air Purifier FilterNotePlease take the new filter out of the plastic bag before putting it in the machine.