Nispira 3-In-1 Activated Charcoal HEPA filter replacement compatible with Homedics Air Purifier AP-T10-BK and AP-T10-WT Compared to the original part AP-T10 Preliminary filter helps extend HEPA filter life span by preventing hair, dust and debris from entering the machine. HEPA filter removes up to 99.97 percent of airborne particles size as small as 0.3 microns. Activated carbon filter removes smoke, odors from pets, cooking smells and VOCs chemical. Give you a peace of mind for fresh air. 1 filter will be included. Suggest replacing the filter after 6 - 8 months use to optimize the performance. Dimension: 5.7" x 5.7" x 4.7". This product meets or exceeds leading national brandcs' quality Nispira 3-In-1 Activated Charcoal HEPA filter replacement compatible with Homedics Air Purifier AP-T10-BK and AP-T10-WT. Compared to the original part AP-T10. Preliminary filter helps extend HEPA filter life span by preventing hair, dust and debris from entering the machine. HEPA filter removes up to 99.97 percent of airborne particles size as small as 0.3 microns. Activated carbon filter removes smoke, odors from pets, cooking smells and VOCs chemical. Give you a peace of mind for fresh air. 1 filter will be included. Suggest replacing the filter after 6 - 8 months use to optimize the performance. Dimension: 5.7" x 5.7" x 4.7". This product meets or exceeds leading national brandcs' quality