Best Furnace Air Filter

# Preview Product Price
1 Filtrete 16x25x1, AC Furnace Air Filter, MPR 300, Clean Living Basic Dust, 6-Pack (exact dimensions 15.69 x 24.69 x 0.81) Filtrete 16x25x1, AC Furnace Air Filter, MPR 300, Clean Living Basic Dust, 6-Pack (exact dimensions... $46.60
2 Filtrete 16x25x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 4-Pack (exact dimensions 15.69 x 24.69 x 0.81) Filtrete 16x25x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 4-Pack (exact dimensions... $53.99
3 Aerostar 16x25x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 15 3/4'x 24 3/4' x 3/4') Aerostar 16x25x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 15 3/4"x 24... $40.72
4 Filtrete 20x25x1, AC Furnace Air Filter, MPR 1500, Healthy Living Ultra Allergen, 2-Pack (exact dimensions 19.719 x 24.688 x 0.78) Filtrete 20x25x1, AC Furnace Air Filter, MPR 1500, Healthy Living Ultra Allergen, 2-Pack (exact... $38.99
5 Aerostar 16x20x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual size 15 3/4'x 19 3/4' x 3/4') Aerostar 16x20x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual size 15 3/4"x 19... $37.81
6 Filtrete 20x25x4(SlimFit), AC Furnace Air Filter, MPR 1550 DP, Healthy Living Ultra Allergen Deep Pleat, 4-Pack (actual dimensions 19.5 x 24.5 x 3.75) Filtrete 20x25x4(SlimFit), AC Furnace Air Filter, MPR 1550 DP, Healthy Living Ultra Allergen Deep... $77.34
7 Filtrete 20x25x1, AC Furnace Air Filter, MPR 2200, Healthy Living Elite Allergen, 6-Pack (exact dimensions 19.69 x 24.69 x 0.78) Filtrete 20x25x1, AC Furnace Air Filter, MPR 2200, Healthy Living Elite Allergen, 6-Pack (exact... $137.38
8 Aerostar 16x25x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 15 3/4'x 24 3/4' x 3/4') Aerostar 16x25x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 15 3/4"x 24... $46.79
9 Aerostar 16x25x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 15 3/4'x24 3/4'x3/4') Aerostar 16x25x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 15 3/4"x24... $35.44
10 Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack $38.70
11 Nordic Pure 16x25x1 MERV 8 Pleated AC Furnace Air Filters 6 Pack Nordic Pure 16x25x1 MERV 8 Pleated AC Furnace Air Filters 6 Pack $39.29
12 AIRx ALLERGY 16x25x1 MERV 11 Pleated Air Filter - Made in the USA - Box of 6 AIRx ALLERGY 16x25x1 MERV 11 Pleated Air Filter - Made in the USA - Box of 6 $58.95
13 Aerostar 12x12x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 11 3/4' x 11 3/4' x 3/4') Aerostar 12x12x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 11 3/4" x 11... $24.98
14 Honeywell Home 20x25x4 MERV 8, AC Furnace Air Filter, 1 PACK (CF100A1025) (Actual Dimensions: 19.94 x 24.87 x 4.38 in.) Honeywell Home 20x25x4 MERV 8, AC Furnace Air Filter, 1 PACK (CF100A1025) (Actual Dimensions: 19.94... $29.98
15 Filtrete 20x25x1, AC Furnace Air Filter, MPR 2800, Healthy Living Ultrafine Particle Reduction, 2-Pack (exact dimensions 19.719 x 24.688 x 0.78) Filtrete 20x25x1, AC Furnace Air Filter, MPR 2800, Healthy Living Ultrafine Particle Reduction,... $62.99

Trusted products are abundant on the market. Customers often find it difficult to select the appropriate product. To help them with that process, we have listed the Top 20 Best Furnace Air Filter , which will help them select the best item for their specific needs.

Bestseller No. 1
Filtrete 16x25x1, AC Furnace Air Filter, MPR 300, Clean Living Basic Dust, 6-Pack (exact dimensions 15.69 x 24.69 x 0.81)
  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC: 3-month pleated 1 inch air filters for your furnace, air conditioner or HVAC system
  • DESIGNED WITH EXCLUSIVE: Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through
  • Attracts and captures large particles such as lint, household dust, dust mite debris and mold spores
  • MPR 300 has a rating of MERV 5
  • The higher the MPR, the more micro particles-such as pollen, pet dander, smoke, bacteria and viruses-your filter will capture from the air passing through it
Bestseller No. 2
Filtrete 16x25x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 4-Pack (exact dimensions 15.69 x 24.69 x 0.81)
  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system
  • DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through
  • ATTRACTS AND CAPTURES particles such as lint, pollen, dust, pet dander, smoke and smog
  • 1000 MPR has a rating of MERV 11
  • The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it
Bestseller No. 3
Aerostar 16x25x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 15 3/4"x 24 3/4" x 3/4")
  • Nominal size: 16x25x1; Actual size 15 3/4"x 24 3/4" x 3/4"; This MERV 8 filter is comparable with MPR 600 & FPR 5.
  • Designed to filter microscopic particles such as lint, dust mites, spores, and pollen
  • Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive
Bestseller No. 4
Filtrete 20x25x1, AC Furnace Air Filter, MPR 1500, Healthy Living Ultra Allergen, 2-Pack (exact dimensions 19.719 x 24.688 x 0.78)
  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system
  • DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through
  • ATTRACTS AND CAPTURES microscopic particles such as smoke, cough and sneeze debris, bacteria and viruses--and large particles, including lint, household dust and pollen
  • 1500 MPR has a rating of MERV 12
  • The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it
Bestseller No. 5
Aerostar 16x20x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual size 15 3/4"x 19 3/4" x 3/4")
  • Nominal size: 16x20x1; Actual size 15 3/4"x 19 3/4" x 3/4"; This MERV 8 filter is comparable with MPR 600 & FPR 5.
  • Designed to filter microscopic particles such as lint, dust mites, spores, and pollen
  • Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive
SaleBestseller No. 6
Filtrete 20x25x4(SlimFit), AC Furnace Air Filter, MPR 1550 DP, Healthy Living Ultra Allergen Deep Pleat, 4-Pack (actual dimensions 19.5 x 24.5 x 3.75)
  • Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1" home air filters for your furnace, air conditioner, or HVAC system
  • Designed with exclusive Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through
  • Attracts and captures microscopic particles such as smoke, cough and sneeze debris, bacteria and viruses—and large particles, including lint, household dust and pollen
  • Tip: The higher the MPR (Microparticle Performance Rating), the more particles the filter captures. Select 2500 or 2800 MPR to also capture ultrafine particles
  • Filtrete 1550 MPR (Microparticle Performance Rating) equates to MERV 12
Bestseller No. 7
Filtrete 20x25x1, AC Furnace Air Filter, MPR 2200, Healthy Living Elite Allergen, 6-Pack (exact dimensions 19.69 x 24.69 x 0.78)
  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system
  • DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through
  • ATTRACTS AND CAPTURES microscopic particles such as smoke, cough and sneeze debris, bacteria and viruses - and large particles, including lint, household dust and pollen
  • 2200 MPR has a rating of MERV 13
  • The higher the MPR, the more microparticles - such as pollen, pet dander, smoke, bacteria and viruses - your filter will capture from the air passing through it.69% SMALL PARTICLE CAPTURE, like bacteria and particles that carry viruses ( % captured is based on ASHRAE 52.2 testing for 0.3 to 1 micron particles from the air passing through the filter, which relates to HVAC industry standard efficiency testing).CERTIFIED as asthma & allergy friendly (As outlined in report ASCR: 1246-01).FIND YOUR SIZE: 2200 MPR available in 4 in. , 4 in. slim fit and 5 in. thick air filters.FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 90 days for 1in. filters, and at least every 12 months for 4 in. and 5 in. filters.A dirty filter will slow down air flow and make the system work harder to keep you warm or cool - wasting energy. Sign-up for a filter change reminder program that works for you!
Bestseller No. 8
Aerostar 16x25x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 15 3/4"x 24 3/4" x 3/4")
  • Nominal size: 16x25x1; Actual size 15 3/4"x 24 3/4" x 3/4"; This MERV 11 filter is comparable with MPR 1000-1200 & FPR 7.
  • Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke
  • Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive
Bestseller No. 9
Aerostar 16x25x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 15 3/4"x24 3/4"x3/4")
  • Nominal size: 16x25x1; Actual size: 15 3/4"x24 3/4"x3/4"; This MERV 11 filter is comparable with MPR 1000-1200 & FPR 7
  • Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke
  • Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive
Bestseller No. 10
Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters 2 Pack
  • Nominal Size: 20 x 25 x 4, Actual Size: 19 1/2 x 24 1/2 x 3 5/8 (19.5 x 24.5 x 3.63)
  • Measure your air filter for the exact size and compare it to our actual size to ensure proper fit.
  • If you are replacing a Honeywell or Lennox 20x25x4 or an air filter with an MPR rating with an actual depth of 4 3/8, please see our 20x25x5 (4 3/8 actual depth)
  • Nordic Pure MERV 12 is equivalent to MPR 1500-1900
  • Made in the USA
Bestseller No. 11
Nordic Pure 16x25x1 MERV 8 Pleated AC Furnace Air Filters 6 Pack
  • Nominal Size: 16 x 25 x 1, Actual Size: 15 1/2 x 24 1/2 x 3/4 (15.5 x 24.5 x 0.75)
  • Measure your air filter for the exact size and compare it to our actual size to ensure proper fit.
  • This dust reduction air filter is ideal in keeping your AC and furnace equipment working efficiently and helps reduce odors
  • Nordic Pure MERV 8 is equivalent to MPR 800
  • Made in the USA
Bestseller No. 12
AIRx ALLERGY 16x25x1 MERV 11 Pleated Air Filter - Made in the USA - Box of 6
  • MERV Rated Replacement Air Filter: AIRx Filters 16x25x1 (Actual: 15.50 x 24.50 x 0.75 in) MERV 11 air filter assures the effectiveness of your home HVAC system resulting to efficient heating, ventilation and air conditioning
  • Contaminant Reducing Replacement Air Filter: AIRx Filters 16x25x1 air filter replacement (Actual: 15.50 x 24.50 x 0.75 in) traps 1.0 - 10.0 micron of particles such as lint, dust, pollen, dust mite debris, mold spores, pet dander, smoke, and smog
  • High Quality Air Filter Replacement Material: AIRx Filters 16x25x1 (Actual: 15.50 x 24.50 x 0.75 in) air filters are 100% made in the USA using high quality air filter moisture resistant double-wall beverage board
  • Superior Air Filter Replacement Construction And Specs: AIRx Filters 16x25x1 air filter uses electrostatically charged 100% synthetic gradient media can perform at temperature ranging from 180F (82C) continuous service, peak 225F (107C)
  • Multi-Pack OEM Air Filter Replacement Compatible: AIRx Filters 16x25x1 MERV 11 air filter can replace and/or comparable with Allergen Defense MPR 1000 1085 1200, Odor Reduction MPR 1200 16x25x1 air filter
Bestseller No. 13
Aerostar 12x12x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 11 3/4" x 11 3/4" x 3/4")
  • Nominal Size: 12x12x1, Actual Size: 11 3/4"x11 3/4"x3/4"; This MERV 8 filter is comparable with MPR 600 & FPR 5.
  • Designed to filter microscopic particles such as lint, dust mites, spores, and pollen
  • Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive
Bestseller No. 14
Honeywell Home 20x25x4 MERV 8, AC Furnace Air Filter, 1 PACK (CF100A1025) (Actual Dimensions: 19.94 x 24.87 x 4.38 in.)
  • A HEALTHIER HOUSEHOLD - Breathe easy in your home with a Honeywell Home 4-Inch High Efficiency Air Cleaner Filter that helps keep hazardous airborne particles out and fresh air flowing in
  • MERV 8 RATING - Get exceptional protection against dust, viruses, bacteria, fungus, pollen, and spores. 20x more effective than typical 1-inch fiberglass filters
  • RECOMMENDED USE - Recommended for homes with pets, people with allergies, homes with smokers, or anyone wanting cleaner air
  • LONG LASTING FILTRATION - Lasts up to 12 months without losing quality over time
  • EASY INSTALLATION - Honeywell Home's easy-to-install air filters make changing out your air filtration unit quick, painless, and mess-free.
Bestseller No. 15
Filtrete 20x25x1, AC Furnace Air Filter, MPR 2800, Healthy Living Ultrafine Particle Reduction, 2-Pack (exact dimensions 19.719 x 24.688 x 0.78)
  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system
  • DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through
  • ATTRACTS AND CAPTURES microscopic particles such as smoke, cough and sneeze debris, bacteria and viruses--and large particles, including lint, household dust and pollen
  • 2800 MPR has a rating of MERV 14
  • The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it
Bestseller No. 16
Aerostar 20x20x1 MERV 13 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 3/4" x 19 3/4" x 3/4")
  • Nominal size: 20x20x1; Actual size: 19 3/4"x 19 3/4" x 3/4"; This MERV 13 filter is comparable with MPR 1500-1900 & FPR 10.
  • Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, smoke, viruses, and bacteria
  • Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive
SaleBestseller No. 17
Nordic Pure 14x24x1 MERV 12 Pleated AC Furnace Air Filters 6 Pack
  • Nominal Size: 14 x 24 x 1, Actual Size: 13 3/4 x 23 3/4 x 3/4 (13.75 x 23.75 x 0.75)
  • Measure your air filter for the exact size and compare it to our actual size to ensure proper fit.
  • Ideal for high efficiency air filtration and will help those with moderate allergies and asthma.
  • Nordic Pure MERV 12 is equivalent to MPR 1500-1900
  • Made in the USA
Bestseller No. 18
Filterbuy 20x25x4 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (2-Pack, Silver)
  • 20x25x4 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19.38 x 24.38 x 3.63 inches)
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow
  • High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products lifespan by 3 times that of fiberglass models
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials
Bestseller No. 19
X6673 Lennox 20x25x5 Merv 11 Filter Media 2 Pack
  • MERV 11
  • Actual Size: 19-3/4" X 24-3/4" X 4-3/8"
  • 2 Filters
  • Manufactured by Lennox
  • Nominal Size: 20" x 25" x 5"
Bestseller No. 20
Nordic Pure 16x25x5 MERV 12 Honeywell/Lennox AC Furnace Air Filters 2 Pack
  • Nominal Size: 16-Inch by 25-Inch by 5-Inch
  • Actual Size: 15-3/4-Inch by 24-3/4-Inch by 4-3/8-Inch
  • Nordic Pure brand replacements for Honeywell units
  • Replacements for Honeywell F100F1012, FC100A1026, FC100A1029, FC100C1009 and FC200E1029
  • MERV 12 filter media to help reduce pollen, pet dander, dust, mold and more

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