Replacement filter value pack for Hunter HPF500 ExtremeAir Tower Bladeless Air Purifier . The value pack includes two (2) HEPA filters and four (4) pre-filters. 

Features: 

• Silver nanoparticles in the EcoSilver® pre-filter prevent the growth of microorganisms on the filter, including bacteria and viruses, and removes harmful VOCs (volatile organic compounds)
• Coconut carbon in the pre-filter neutralizes odors, smoke, pollutants, and allergens
• The True HEPA 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
• Photocatalyst filter attached to the backside of the HEPA filter eliminates toxic VOCs in the air caused by household cleaners and products
• Recommended to replace HEPA filter every 6 months and pre-filter every 3 months for maximum efficiency, or more often depending on air quality & environmental factors
• The package contains two (2) HEPA filters and four (4) Pre-filters

Product Dimensions: HEPA Filter: 9.05 x 5.31 x 0.12 inches Pre-Filter: 8.89 x 5.63 x 0.12 inches  

Fits: HPF500, HPF500WHS, HPF500BLS, HPF500GRS