- True HEPA filtration 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
- Recommended to replace every 12 months for maximum efficiency, or more often depending on air quality & environmental factors
- Fits Hunter air purifier models with 4-in-1 Total Air Purification system
- Package contains 1 replacement filter
- Dimensions: 5 x 1-3/4 x 10-1/4 inches
*The 2-pack contains (2) 30904 filters, which is the same as 30906.