Genuine Hunter F1831HE replacement air purifier filter. Fits Hunter air purifier model HT1831. 

• 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
• Natural bamboo charcoal reduces harmful volatile organic compounds (VOCs) and 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
• Dimensions: 14-1/5 x 8-1/10 x 1-2/5 inches

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