HEPAtech Replacement Filter 30920

3-stage HEPAtech filter removes up to 99.97% of airborne particles as small as 0.3 microns in size including smoke, dust, pollen, pet hair and dander, mold spores and dust mites Stage 1: Mesh particle screen pre-filter captures larger particles such as dust, lint and hair Stage 2: Submicron primary filter is made out of a micro-filter material which removes particles as small as 0.3 microns in size Stage 3: Activated charcoal filter removes household odors from cooking, cleaning, smoking and pets Recommended to replace every 12 months for maximum efficiency, or more often depending on air quality & environmental factors Package contains 1 replacement filter Product Dimensions: 13-1/2 x 10-1/2 x 3/4 inches Fits Model Part Number 30050 30920 30054 30920 30055 30920 30065 30920 30070 30920 30071 30920 30075 30920 30080 30920 30177 30920 30832 30920 30882 30920 30883 30920 37055 30920 37065 30920