Best air filters Deals Online in the US
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22% OffSimply 20x20x1 Air Filter, Merv 8, MPR 600, 6 Pack, Furnace Air Filter for HVAC (Actual Size: 19.75"x19.75"x0.75") DUST, Pet, & Allergy ControlSimply - Best Value
28% OffSimply 16x25x1 Air Filter, MERV 8, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 15.75"x24.75"x0.75") DUST, Pet, & Allergy ControlSimply 
Filterbuy 20x20x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 8)
Amazon Basics 14x20x1 Air Filter, MERV 8 AC Furnace Filters, Allergy Control, Electrostatic, Removes Dust Pollen and Lint, 6-Pack (Actual Size: 13.75" x 19.75" x 0.75")Amazon Basics
4-Pack Replacement Filters For AIRDOCTOR 5000 2 Filter 2 Activated Carbon 2131V
Filtrete 24x24x1 Air Filter MERV 5, 6-Pack AC Furnace HVAC Filters for Home, MPR 300 Basic Dust Defense, Pleated Electrostatic Removes Lint & Dust (Actual Size 23.81x23.81x0.66 in)Filtrete
Filtrete 16x20x1 Air Filter, MERV 11, MPR 1000, Allergens & Pet Dander, 3-Month AC and Furnace Filters, Cleaner Air, Reliable Airflow, 2 HVAC Filters (Actual Size 15.68 x 19.68 x 0.81 in)Filtrete-
Trion Air Bear 255649-102 (3 Pack) Pleated Furnace Air Filter 20"x25"x5" MERV 8
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25% OffSimply 16x20x1 Air Filter, MERV 8, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 15.75"x19.75"x0.75") DUST, Pet, & Allergy ControlSimply
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PERMANENT WASHABLE ELECTROSTATIC FURNACE AC AIR FILTER Dust Electronic
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Filtrete 20x25x5 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Lennox, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 19.63 x 24.75 x 4.31 in)Filtrete
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Filtrete 20x25x1 Air Filter MERV 5, 6-Pack AC Furnace HVAC Filters for Home, MPR 300 Basic Dust Defense, Pleated Electrostatic Removes Lint & Dust (Actual Size 19.69x24.69x0.81 in)Filtrete
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16 x 25 x 1 Standard Pleated Air Filter FPR 5, 3-Pack, Air Filters Replacement
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12% OffFiltrete 16x25x4 Air Filter MERV 12, MPR 1550 Certified Asthma & Allergy Friendly 2-Pack, Fits Lennox & Honeywell, AC Furnace HVAC Filters, Pleated Electrostatic (Actual Size 15.88x24.56x4.31 in)Filtrete
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Filterbuy 16x25x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 8)
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Genuine AprilAire 213 Replacement Filter for AprilAire Whole-House Air Purifiers - MERV 13, Healthy Home Allergy, 20x25x4 Air Filter (Pack of 1)Aprilaire
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Filterbuy 20x25x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 8)
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Filtrete 16x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Lennox & Honeywell, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 15.88x24.56x4.31 in)Filtrete
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20 x 24 x 1 Standard Pleated Air Filter FPR 5, 3-Pack, Air Filters Replacement
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AROEVE MK01 & MK06 Air Filter Replacement 4-in-1 Air Filter for Smoke Pollen Dander Hair Smell Suitable- Standard Version(2 Pack)AROEVE
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20X20X1 Pleated Air Filters Replacement For Furnace. MERV 8 AC HVAC FPR 5 3-Pack
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20% OffGermGuardian, Filter B HEPA Pure Genuine Air Purifier Filter, Removes 99.97% of Pollutants, Wildfire Smoke, Odors, for Ac4825, Ac4300, Ac4850, Ac4880, Ac4900, Cdap4500, Ap2200, Flt4825GermGuardian
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Filterbuy 16x25x1 Pleated Air Filters, Replacement for HVAC AC Furnace (MERV 11)
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Filtrete 20x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense, 4-Pack, Fits Honeywell and AprilAire, AC Furnace HVAC Filters for Home, Pleated ElectrostaticFiltrete
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1 PACK or 3 PACK - Air Filter Standard Pleated FPR 5 Dust Filters Furnace AC
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15% OffGenuine AprilAire 413 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 16x25x4 Air Filter (Pack of 1)Aprilaire
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Pleated Air Filters MERV 8 HVAC Vent Furnace 20x25x1 Replacement Filter 3 Pack
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25% OffGenuine AprilAire 410 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 11, Clean Air & Dust, 16x25x4 Air Filter (Pack of 1)Aprilaire
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Home True HEPA Air Purifier Large Room Air Filters for Allergies Smoke Pet Odor
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LEVOIT Air Purifiers for Bedroom Home Dorm, AHAM VERIFIDE, 3-in-1 Filter Cleaner With Aroma Pad, Filters Smoke, Allergens, Pet Dander, Odor, Dust, Office, Desktop, Core Mini-P, WhiteLevoit
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2 Pack Air HEPA Type Filter Replacement For Holmes AER1 Air Purifier
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15% OffCore Mini Replacement Filter Compatible with LEVOIT Core Mini Air Purifier,Core Mini-P, Replace Part #Core Mini-RF, 2 Filter & 10 Fragrance SpongeCabiclean
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Filtrete 20x25x5 Air Filter MERV 11 MPR 1000 Micro Allergen Defense 2-Pack
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Genuine AprilAire 210 Replacement Filter for AprilAire Whole-House Air Purifiers - MERV 11, Clean Air & Dust, 20x25x4 Air Filter (Pack of 1)Aprilaire
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Filterbuy 12x12x1 Air Filter MERV 8 Essential Dust & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 11.75 x 11.75 x 0.75)Filterbuy
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Filtrete 16x25x5 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Lennox, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 15.63x24.74x4.31 in)Filtrete
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13% OffLevoit Core 300-P Air Purifier Genuine Replacement Filter, Core300S-P Filter, AHAM VERIFIDE, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Removes Smoke Odor, Allergens,Core 300-RF,1PackLevoit
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15% Off2 Pack Core Mini Filter H13 True HEPA Filters for LEVOIT Core Mini Core Mini-P Air Purifier Replacement Filter 3-in-1 HEPA, High-Efficiency Activated Carbon, Replace Part Core Mini-RFColorfullife
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Filtrete 14x24x1 Air Filter, MERV 11, MPR 1000, Allergens & Pet Dander, 3-Month AC and Furnace Filters, Cleaner Air, Reliable Airflow, 4 HVAC Filters (Actual Size 13.68 x 23.68 x 0.81 in)Filtrete
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40% OffFiltrete 20x25x1 Air Filter, MERV 12, MPR 1500, Allergens, Bacteria & Viruses, 3-Month AC and Furnace Filters, Cleaner Air, Reliable Airflow, 2 HVAC Filters (Actual Size 19.62 x 24.62 x 0.78 in)Filtrete
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10% OffAerostar 19.875x21.5x1 MERV 8 Air Filter, 6 Count, ACTUAL SIZE (19.875 x 21.50 x 0.75), HVAC, Air Conditioning & Furnace Filter Captures Dust, Lint & Pollen (MPR 600 / FPR 5), Made in USAAerostar
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Aerostar 20x20x1 MERV 8 Air Filter, 4 Count, ACTUAL SIZE (19.75 x 19.75 x 0.75), HVAC, Air Conditioning & Furnace Filter Captures Dust, Lint & Pollen (MPR 600 / FPR 5), Made in USAAerostar
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BNX TruFilter 20x25x1 Air Filter MERV 13 (6-Pack) - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters for Allergies, Pollen, Mold, Bacteria, Smoke, Allergen, MPR 1900 FPR 10BNX
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Aerostar 18x20x1 MERV 11 Air Filter, 6 Count, ACTUAL SIZE (17.50 x 19.50 x 0.75), HVAC, Air Conditioning & Furnace Filter for Dust, Pet Dander, Smoke & Allergies (MPR 1200 / FPR 7), Made in USAAerostar
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Core 300 Replacement Filter for LEVOIT Core 300 Core300-P Core 300S Core 300-P VortexAir Air Purifier, Core 300-RF, 3-in-1 Activated Carbon, 2 Pack, White, Core 300-Pisinlive
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12% Off4 Pack FLT4825 Filter B Replacement with Activated Carbon Pre-Filters Compatible with Guardian HEPA Air Purifier AC4825 AC4825E AC4300 AC4800 AC4880 AC4900 AC4850isinlive
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Filtrete 16x25x1 Air Filter, MERV 11, MPR 1000, Allergens & Pet Dander, 3-Month AC and Furnace Filters, Cleaner Air, Reliable Airflow, 6 HVAC Filters (Actual Size 15.68 x 24.68 x 0.81 in)Filtrete
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Honeywell Home 20x25x4 MERV 12, AC Furnace Air Filter, 3 PACK (CF200A1016-3PKAM) (Actual Dimensions: 19.9 x 24.9 x 4.38 in.)Honeywell Home
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Honeywell FC100A1037 (2 Pack) - 20" x 25" x 4" Pleated Air Filter, MERV 11 Bundle with Same Day Supply Filter Change ReminderHoneywell
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Colorfullife 4 True HEPA + 8 Pre-Filter Aer1 Filter Replacement Compatible With Holmes AER1 Air Purifiers, Replacement Parts # HAPF30AT, HAPF300AH-U4R, HAP242-NUCColorfullife
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Aerostar 16.375x21.5x1 MERV 11 Air Filter, 4 Count, ACTUAL SIZE (16.50 x 21.50 x 0.75), HVAC, Air Conditioning & Furnace Filter for Dust, Pet Dander, Smoke & Allergies (MPR 1200 / FPR 7), Made in USAAerostar
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12% Off2 Pack Vital 100S-P Replacement Filter Compatible with LEVOIT Vital 100S and 100S-P Air Purifier, Vital 100S Filter for Home, Vital 100S-RF, LRF-V102-WUS, WhiteCabiclean
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Filtrete 20x30x1 Air Filter, MERV 13 MPR 1900, Allergens, Bacteria, Viruses & Air Pollutants, 3-Month AC/Furnace Filters, Cleaner Air Reliable Airflow, 2 HVAC Filters(Act Size 19.62x29.62x0.78 in)Filtrete
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BNX TruFilter 20x20x1 Air Filter MERV 11 (6-Pack) - MADE IN USA - Allergen Defense Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters for Allergies, Dust, Pet, Smoke, Allergy MPR 1200 FPR 7BNX
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15% OffCore 300 Replacement Filter for LEVOIT Core 300 Core 300S Core 300-P Core 300S-P Air Purifier for Home Bedroom, 3-in-1 High Efficiency and Activated Carbon Filter, Part # Core 300-RF, 2 Pack, WhiteFunmit
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19% Off6 Pack HPA300 HEPA Filter Replacement for Honeywell Air Purifiers HPA300 Series, HPA300, HPA304, HPA8350, HPA300VP, HPA3300b, HPA5300, Replace HRF-R3, Pack of 6 HEPA R and 8 Pre filters A HRF-AP1Smilyan
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Nordic Pure 20x25x5 (19_7/8 x 24_7/8 x 4_3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 2 PackNordic Pure
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PuroAir 240 Replacement Filter - Genuine Puro Air 240 Filter Replacement - Official PuroAir Air Purifier HEPA Filter with CarbonTech Filters 99.9% of Pollen, Dust, Pet Dander, Smoke, Odors (2PK)PuroAir
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Simply 20x20x1 Air Filter, Merv 11, MPR 1000, 6 Pack, Furnace Air Filter for HVAC (Actual Size: 19.75"x19.75"x0.75") DUST, Pet, & Allergy ControlSimply
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17% OffAprilAire 310 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 11, Clean Air & Dust, 20x20x4 Air Filter (Pack of 1)Aprilaire
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15% OffAprilAire 313 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 20x20x4 Air Filter (Pack of 1)Aprilaire
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20% Off2 Pack Vital 100 Replacement Filter for LEVOIT Air Purifier, 3-in-1 HEPA Replacement Filter and High-Efficiency Activated Carbon Filter Set, Part Number Vital 100-RFLINNIW
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LEVOIT LV-H133 Replacement Filter, Genuine Air Purifier Filters, High-Efficiency Activated Carbon for Removal of Smoke, Odor, Allergens, Pollen, LV-H133-RF, White,1 PackLevoit
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Medify MA-25 Genuine Replacement Filter Set for Allergens, Smoke, Wildfires, Dust, Odors, Pollen, Pet Dander | 3 in 1 with Pre-filter, True HEPA H13 and Activated Carbon for 99.9% Removal | 2-PackMedify Air
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Aerostar 12x12x1 MERV 8 Air Filter, 6 Count, ACTUAL SIZE (11.75 x 11.75 x 0.75), HVAC, Air Conditioning & Furnace Filter Captures Dust, Lint & Pollen (MPR 600 / FPR 5), Made in USAAerostar
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Filterbuy 14x24x1 Air Filter MERV 8 Essential Dust & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 13.38 x 23.38 x 0.75)Filterbuy
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HATHASPACE HSP001 True HEPA Filter Replacement, 4-Stage Air Purifier Filter with Activated Carbon, Pre-Filter & Cold Catalyst, Captures 99.97% of Dust, Smoke, Odors, VOCs, Easy Install, 1 PackHATHASPACE
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FLT4825 HEPA Filter B Replacement Compatible with Guardian Air Purifier Models AC4825 AC4825E AC4825W AC4300 AC4800 AC4850PT AC4850 AC4900 AC4820 AP2200CA, 4 HEPA Filters + 8 Carbon Pre-FiltersCabiclean
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20% OffAprilAire 416 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 16, Allergy, Asthma, & Virus, 16x25x4 Air Filter (Pack of 1)Aprilaire
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PuroAir 400 Replacement Filter - Genuine Puro Air 400 Filter Replacement - Official PuroAir Air Purifier HEPA Filter with CarbonTech Filters 99.9% of Pollen, Dust, Pet Dander, Smoke, OdorsPuroAir
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Filterbuy 20x25x4 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 24.50 x 3.63)Filterbuy
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19% OffCore 200S Replacement Filter Compatible with LEVOIT Core 200S Core 200S-P Smart WiFi Air Purifier, Fit for Levoit Core 200s Replacement Filter, 2Pack 3-Stage H13 Grade True HEPA Filter, Core 200S-RFColorfullife
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15% Off2 Pack Core 200S Replacement Filter, Compatible with LEVOIT Core 200S Core 200S-P Smart WiFi Air Purifier, Compare Part# Core 200S-RF, Core 200S-P, WhiteCabiclean
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20% OffMORENTO 2 Pack HY4866 Genuine Air Purifier Replacement Filter for HY4866 Air Purifier, Original VersionMORENTO
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Honeywell FC100A1029 16 x 25 x 4 Media Air Filter (MERV 11)Honeywell Home
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Filtrete 24x30x1 AC Furnace Air Filter, MPR 700, MERV 8, Tough on Pollen, Easy on Airflow, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 23.81 x 29.81 x 0.81 in)Filtrete
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LEVOIT Core 300-P Replacement Filter Air Purifier Pet Allergy, Genuine Core300S-P Filters, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Core 300-RF-PA, Yellow, 1 PackLevoit
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COWAY Airmega AP-1512HH & 200M Filter Replacement Set, HEPA Filter and Allergen Filter, AP-1512HH-FP AllergenCoway
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FLT4825 HEPA Filter B Replacement Compatible with G-Guardian Air Purifiers AC4825 AC4825E AC4825W AC4300 AC4800 AC4900 AC4850,4 H13 True HEPA Filters+8 Carbon Pre-FiltersPulluty
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RayAir Supply 20x25 Replacement Filter Pads Compatible with Dynamic Air Cleaner 20X25 Refill (3 Pack) White, Made in USARAYAIR SUPPLY
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Filtrete 20x25x1 Air Filter, 3M MERV 1 HVAC AC Furnace Filter Replacement, 6-Pack (Actual Size 19.69x24.69x0.88 in)Filtrete
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15% OffP60 Replacement Filters for YARIKI/TPLMB P60 Air Purifier, for Vhoiu KJ50 Air Purifier, 3 Layer Filtration with Nylon Pre-Filter, HEPA Filter & Carbon Filter, 4 Packisinlive
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Nordic Pure 20x20x4 (19_1/2 x 19_1/2 x 3_5/8) Pleated MERV 12 Air Filters 2 PackNordic Pure
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15% OffCore 300 Replacement Filter for LEVOIT Core 300, Core 300-P, Core 300S Vortex Air Air Purifier, 3-in-1 H13 Grade True HEPA Filter Replacement 2 Pack, Compare Part No. Core 300-RF (White)Colorfullife
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10% OffTrue HEPA KILO Filter For Afloia KILO, KILOPLUS, KILOPRO, MIRO, MIRO PRO and for MORENTO MR-Kilo, Kalo Air Purifier, 360° 3-Stage Filtration for Home Bedroom Large Room Odor Dust Pollen Smoke, 2 PackShufudeJa
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21% OffMK06 MK01 True HEPA Replacement Filter Compatible with AROEVE MK01 MK06, for VOOPNU DH-JH12 and Kloudi DH-JH01 Air Purifier, Standard Version, 3 PackPacHamper
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Levoit Core 600S-P Air Purifier Genuine Replacement Filter, AHAM VERIFIDE, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Removes Smoke, Odors, Allergens, Core 600S-RF, 1 PackLevoit
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2-Pack Core 300 Replacement Filter Compatible with LEVOIT Core 300 and Core 300S Air Purifier, H13 True HEPA & Activated Carbon, Replace Core300-RF, WhiteFuture Way
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Honeywell FC100A1011 20 x 20 x 4 replacement media air furnace filterHoneywell Home
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Motorcraft Engine Air Filter - FA-1883 (OE Replacement Part for Ford: 07-26 Expedition/09-26 F-150/08-16 Super Duty (F-250/F-350/F-450/F-550) and Lincoln: 09-14 Mark LT/07-26 Navigator Vehicles)Motorcraft
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16% OffCHIVALZ 4 Pack HY4866 True HEPA Replacement Filters Compatible with MORENTO HY4866 Air Purifier, WESTHEY HY4866 Air Purifier and YIOU M1 Air Cleaner Purifier, Original VersionCHIVALZ
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2 Pack Mini Max Replacement Filter Compatible with Blueair Blue Pure Mini Max Air Purifiers, HEPA & Activated Carbon Blue Pure FMINI Filter Fits for Blue Pure Mini Maxisinlive
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Pure Enrichment Genuine 3-in-1 True HEPA Replacement Filter for the PureZone Air Purifier (PEAIRPLG) - 2 PackPure Enrichment
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10% Off2 Pack KILO Filter Compatible with Afloia KILO, KILOPLUS, KILOPRO, MIRO,MIRO PRO and MORENTO MR-Kilo, Kalo Air Purifier, 360° 3-Stage Filtration for Odor,Smoke,Dust,Pollen,PetsWILERDA
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Levoit Core Mini-P Air Purifier Genuine Replacement Filter, AHAM VERIFIDE, Supports HEPA Sleep Mode, High-Efficiency Activated Carbon, Removes Smoke, Odors, Allergens, Core Mini-RF, 1 PackLevoit
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15% OffNXBHG AP-1512HH Replacement Filter Compatible with Coway Airmega AP-1512HH and Airmega 200M air Puri-Fier, AP-1512HH-FP, AP-1518R, AP-1519P, 4 Filter, 4 Carbon Filters, Compared to Part #3304899NXBHG
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10% Off2 Pack True HEPA KILO Filter For Afloia KILO, KILOPLUS, KILOPRO, MIRO, MIRO PRO and MORENTO MR-Kilo, Kalo Air Purifier, 360° 3-Stage Filtration for Bedroom Large Room Odor Dust Pollen SmokeVIEWALL
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Clean Comfort AMP-11-2020-45 (2-Pack) - 20" x 20" x 4.5" Media Air Filter, MERV 11Clean Comfort
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True Blue 18x30x1 MERV 11 Allergen Air Filter (4-Pack) | Electrostatic Pleated HVAC Furnace Air Filter | Replacement Filter for Home Use | Made in USATrue Blue
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11% OffLeemone Core Mini Replacement Filter for LEVOIT Core Mini Air Purifiers,Core Mini-P, 3-in-1 HEPA, High-Efficiency Activated Carbon, Replace Part Core Mini-RF,2 PackLeemone
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14% OffAP-1512HH Filter Replacement Set for Coway Airmega AP-1512HH and Airmega 200M Air Purifiers, 2 HEPA Filter and 6 Carbon Pre-Filters, Compared to Part # 3304899isinlive
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AprilAire 401 Replacement Furnace Filter for AprilAire 2400, Space-Gard 2400 Whole-House Air Purifiers - MERV 10, 16x25x6 Air Filter (Pack of 1)Aprilaire
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15% OffCore 200S-P Replacement Filter Compatible with LEVOIT Core 200S Smart WiFi Air PuriFier, Core 200S-RF Air Filter, 2 PackiSingo
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14% Off2 Pack Core 300 Pet Care Replacement Filter for LEVOIT Core 300 Core 300-P Core 300S-P Air Purifier, Core 300-RF-PAiSingo
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10% Off2 Pack A2 Replacement Filter Compatible with 3M Filtrete Room Air Purifier Models FAP-C02-A2, FAP-C03-A2, FAP-T03-A2, Part # 1150101isinlive
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Colorfullfe Performance Plus Filter for Holmes AER1 True Filter, Replacement HAPF300AP-U4, 4 Filter and 8 Carbon FiltersColorfullife
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12% Off2 Pack TZ-K1 Replacement Filter Compatible with ToLife TZ-K1 Air Puri-fier, MK01 MK06, FreAire KN6391 Air Purifiers and VOOPNU DH-JH12 Air Purifier, 3-in-1 HEPA High-Efficiency Activated Carbon FilterLINNIW
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15% OffHPA300 HEPA Air Purifier Filter R for Honeywell Air Purifier HPA100/200/300 and 5000 Series, 6 Pack HEPA Filter Compatible with Honeywell R Filter (HRF-R3 & HRF-R2 & HRF-R1)Cabiclean
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Vital 200S Replacement Filter Compatible with LEVOIT Vital 200S and Vital 200S-P Air Purifier, HEPA and High-Efficiency Activated Carbon Vital 200S-P Filter, Vital 200S-RF, LRF-V201-WUS, 2 Pack, WhiteJORAIR
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17% Off4 Pack C545 True HEPA Replacement Filter S Compatible with Winix C545 Air Purifier, C545 HPEA Filter S Only, Part number 1712-0096-00Colorfullife
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10% OffTRIGHTFILTERS 12x12x1 Air Filter 6 Pack, Durable MERV 8 Pleated Home HVAC AC Furnace Filters, Lightweight Compact Air Conditioner Filter ReplacementTRIGHTFILTERS
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28% OffHPA300 Filter Replacement for Honeywell HPA300 Series Air Purifiers HPA300, HPA300VP, HPA304, HPA3300, Replace HRF-R3 (3 R Replacement Filter + 4 Activated Carbon Pre-Filter) by FunmitFunmit
112 Air Filters deals are available from:
Amazon, eBay stores, starting from $10.99.
The biggest discount we found is 40% on Filtrete 20x25x1 Air Filter, MERV 12, MPR 1500, Allergens, Bacteria & Viruses, 3-Month AC and Furnace Filters, Cleaner Air, Reliable Airflow, 2 HVAC Filters (Actual Size 19.62 x 24.62 x 0.78 in) at Amazon.
The lowest price we found is $10.99 while the highest is $179.99.
Prices for the best Air Filters deals average at $41.03.
Last updated on July 5, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Air Filters.