OVAL AIR H13 True HEPA 2-in1 Replacement Charcoal Combined Filter with Pre-filter

H13 True HEPA filter removes 99.9% of dust mites, pollen, mold spores, and pet dander as small as 0.1 microns; three-stage filtration with a prefilter to trap pet fur, and charcoal filter to absorb VOCs and odors Replace OVAL AIR HEPA Air Purifier filters every 3000 hours of operation - for 8 hours daily use, replace filters after one year; for 24 hours daily use, replace filters every 3-4 months Package contains 1 H13 Medical Gradefilter