Call Toll-Free: 1-800-277-3458

My Cart:

0 item(s)

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee

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.

24 Item(s)

Grid  List 

Set Descending Direction
  • FAPF00-4 Filtrete Ultra Quiet Air Purifier Replacement Filter (4-Pack)
  • PC-2BXN Protec Antimicrobial Cleaning Cartridge (2-pack)
  • HRF-AP1 Honeywell Universal Carbon Pre-filter

    HRF-AP1 Honeywell Universal Carbon Pre-filter

    $16.99
    MSRP: $19.34
    Save 12%
  • HRF-B1 Honeywell Household Odor and Gas Reducing Pre-filter
  • 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

    $28.99
    MSRP: $31.34
    Save 7%
  • Holmes HAPF21-U4 Replacement Purifier Air Filter

    Holmes HAPF21-U4 Replacement Air Purifier Filter

    $7.99
    MSRP: $9.99
    Save 20%
  • 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 HAPF30D-U Replacement Purifier Air Filter
  • Holmes HAPF600-U3 Replacement Purifier Air Filter

    Holmes HAPF600-U3 Replacement Purifier HEPA Filter

    $19.99
    MSRP: $22.34
    Save 11%
  • RAP.010915 Tier1 Air Purifier Replacement Filter - 15x9x1
  • 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)
  • FC100A1037 Honeywell 20-inch x 25-inch Media Air Filter Replacement

24 Item(s)

Grid  List 

Set Descending Direction
Scroll To Top