Product details:

Air Purifier Parts & Accessories by Guardian Technologies. Details: It includes a HEPA filter, a pre-filter/activated carbon filter layer that captures odors from cooking, pets and smoking, while helping to improve indoor air quality. The HEPA Filter captures 99.97% of dust and allergens as small as 0.1 microns such as household dust, pet dander, mold spores and plant pollens. It is recommended to use with the GermGuardian AC5900WCA.This replacement filter ensures from six to eight months of use.True HEPA filter.
Captures 99.97% of dust and allergens as small as 0.3 microns, such as household dust, pet dander, mold spores, and plant pollens.Prefilter included.
Captures large particles.