Applicable: 2pack+10pc High -efficiency additional filter 3-in-1 air filter is designed as a pure replacement filter. The filter contains 1 filter and 5 additional front filters 1 pc Cleaning Brush, part numbers [PEAIRPLG][PEAIRFIL]compatible . Quality: High -quality , 0.3 micron particles in pure air reached 99.97 %, Our specific honeycomb carbon filter is designed for larger surface area absorption, making your house, office and bedroom air more fresh. Replacement: In order to obtain the performance and maintain the integrity of the machine, it is Recommended to change the pure air filter every5-6 months or according to the frequency of use, bringing comfort to your life. Absorption: It can absorb more home smells and smoke, and has a longer service life. The front filter can capture large particles in the air, such as hair, cotton, pet dandruff, etc. Our activated carbon layer contains more carbon than other filters in the market, providing you and your family with more fresh air, bringing a comfortable lifestyle to you and your family. Services: Quality and customer satisfaction Shopping experience is our primary task, If you have any problems, please contact us at any time. Absorption: It can absorb more home smells and smoke, and has a longer service life. The front filter can capture large particles in the air, such as hair, cotton, pet dandruff, etc. Our activated carbon layer contains more carbon than other filters in the market, providing you and your family with more fresh air, bringing a comfortable lifestyle to you and your family.