1Multifunctional Filtration: The filter cartridge can effectively remove large particles and common pollutants in the air, such as dust, particles, pollen, smoke, pet dander, etc., providing clean, healthy indoor air and protecting the health of you and your family. 2High Efficiency Particle Filtration: With fine filtration technology, it can effectively reduce unnecessary odors in your living space, creating a fresh, odor free living environment for you and providing a more comfortable experience in your daily life. 3Durable: The filter is designed with the correct seal to protect the service life of the cartridge. It is recommended to replace the filter every 6 months, and for best results, disassemble the filter once a month and clean it gently with a soft bristle brush. Regular cleaning of the filter cartridge extends the service life and reduces chemical VOCs, tobacco, smoke and other household odors. 4Easy Installation: The filter is very easy to install and does not require particularly complicated operations, it only needs to be replaced in a few minutes without special tools, which is convenient and saves you time and energy. 5Adaptability: The filter cartridge is adaptable for KJ410F PAC000AW for KJ900F PAC000CW models, which can be perfectly applied to the corresponding air purifiers, ensuring compatibility and effective filtration effect.