Discount Water Filters and Air Filters at Discount Filter Store.com

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Air Purifier Replacement Filters

When your air purifier filter gets old, you reduce the efficiency with which your air is cleaned, so bacteria and pollutants stay in the air longer.  Discount Filter Store has all the air purifier replacement filters you need to keep your family healthy and your home clean, from HEPA (high efficiency particulate air) filters to odor & gas reducing pre-filters to traditional room air filters, humidifier filters to refrigerator air filters.   Discount Filter Store offers a full selection of air purifier replacement filters.  To see a full list of all our air purifiers, filters and systems, click here.

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  • FAPF00-4 Filtrete Ultra Quiet Air Purifier Replacement Filter (4-Pack)
  • HRF-AP1 Honeywell Universal Carbon Pre-filter

    HRF-AP1 Honeywell Universal Carbon Pre-filter

    $18.09
    MSRP: $23.99
    Save 25%
  • HRF-B1 Honeywell Household Odor and Gas Reducing Pre-filter

    HRF-B1 Honeywell Household Odor and Gas Reducing Pre-filter

    $15.99
    MSRP: $18.34
    Save 13%
  • HRF-K2 Honeywell Household Odor and Gas Reducing Pre-filter (2-pack)
  • HRF-R1 Honeywell True HEPA Replacement Filter

    HRF-R1 Honeywell True HEPA Replacement Filter

    $30.89
    MSRP: $40.99
    Save 25%
  • Holmes HAPF21-U4 Replacement Purifier Air Filter

    Holmes HAPF21-U4 Replacement Air Purifier Filter

    $8.49
    MSRP: $11.99
    Save 29%
  • Holmes HAPF30AT-U4 Replacement Purifier Air Filter

    Holmes HAPF30AT-U4 Replacement HEPA Filter

    $15.99
    MSRP: $18.34
    Save 13%
  • Holmes HAPF300AH-U4 Replacement Purifier Air Filter

    Holmes HAPF300AH-U4 Replacement Air Purifier HEPA Filter

    $21.29
    MSRP: $27.99
    Save 24%
  • Holmes HAPF30D-U Replacement Purifier Air Filter
  • Holmes HAPF600-U3 Replacement Purifier Air Filter
  • FC100A1037 Honeywell 20-inch x 25-inch Media Air Filter Replacement
  • PC-2BXN Protec Antimicrobial Cleaning Cartridge (2-pack)

    PC-2BXN Protec Antimicrobial Cleaning Cartridge (2-pack)

    $9.99
    MSRP: $12.34
    Save 19%
  • FAPF02 3M Filtrete Replacement Ultra Clean Air Purifier Filter Comparable by Tier1 (4-Pack)
  • FAPF02 Filtrete Ultra Clean Air Purifier Replacement Filter
  • FAPF03-6 Filtrete Ultra Clean Air Purifier Replacement Filter (6-Pack)
  • FAPF04-4 Filtrete Ultra Slim Air Purifier Replacement Filter (4-Pack)
  • OAC100RF-6 Filtrete Office Air Purifier Replacement Filter (6-Pack)
  • OAC150RF-6 Filtrete Office Air Purifier Replacement Filter (6-Pack)
  • OAC200RF-6 Filtrete Office Air Purifier Replacement Filter (6-Pack)
  • OAC250RF-6 Filtrete Office Air Purifier Replacement Filter (6-Pack)
  • OAC50RF-6 Filtrete Office Air Purifier Replacement Filter (6-Pack)
  • RAP.010813 Tier1 Air Purifier Replacement Filter - 13x9x1 (4-Pack)
  • RAP.011221 Tier1 Air Purifier Replacement Filter - 13x23x1 (6-Pack)
  • RAP.010413 Tier1 Air Purifier Replacement Filter - 5x13x1 (4-Pack)
  • FLR06070 Trane Perfect Fit Air Filter Replacement

    FLR06070 Trane Perfect Fit Air Filter Replacement

    $98.99
    MSRP: $101.99
    Save 3%

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