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Find Replacement Air Filters Fast & Easy!

Air Filter Shield

While many people worry about outdoor air quality, statistics show that they actually should be more concerned about indoor air quality (IAQ). IAQ is the measure of harmful pollutants discovered within or around your home. The EPA ranks IAQ as one of the top five public health risks.

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Air Filter FAQ

Can I use the same air filter for both heat and AC?

Yes, both AC filters and furnace filters are the same thing. We categorize filters based on their intended use to make filter shopping easier for the customer. During the summer months you are more likely to search for AC filters. While during colder winter months you are looking to buy furnace filters. A good tip for remembering when to change your filters is to replace them at the start of each new season.

Which direction does the air filter go?

Always point the arrow on the box in the direction of airflow. If you are unsure the direction of airflow turn on the system fan. Do not remove the old filter before checking airflow as this might allow dirt or debris to escape.

What is air filter MERV rating?

The Minimum Efficiency Reporting Value (MERV) is used by manufacturers to explain how efficent the air filter is at trapping airborne particles. A higher MERV rating means cleaner air but reduced air flow. MERV 8 filters capture 80% of airborn particles like pollen, dust mites, mold spores, and pet dander down to 3 microns in size. MERV 11 air filters capture up to 95% of the above mentioned airborne particles down to 1 micron in size. If you choose a MERV 13 filter expect greatly diminished airflow but improved filtration of bacteria, tobacco smoke, and cooking oil down to 0.3 micorn in size. Before you choose a MERV rating check with your HVAC manufacturer to see what your system is designed to handle. Picking the wrong filter can impact air flow and reduce equipment life.

When to change the air filter in your house?

Replace your air filters every 3 months. You may need to replace your filters more frequently depending on air quality. If you are unsure about indoor air quailty check the filter monthly. If you notice the filter material is greatly discolored or noticably dirty change out the filter. Failing to replace air filters as recommened can lead to reduced system efficieny, greater energy costs, and poor air quailty.

Which air filter is best for allergies?

If you have respiratory problems caused by pollen, dust, mold, or pet dander a MERV 11 filter can help reduce the severity of aliments caused by allergies. If you are sensitive to smoke from cooking or tobacco a MERV 13 filter is recommend. For many allergy sufferers it is recommend you install filters to process both supply and return air. Before you choose a MERV rating check with your HVAC manufacturer to see what your system is designed to handle. Picking the wrong filter can impact air flow and reduce equipment life.

Which air filter is best for my home?

Your choice in air filter should depend on needs. MERV 8 filters are perfect if you have no pets and allergies are not a serious concern. MERV 11 filters are recommend for occasional allergy sufferers and homes with pets. A MERV 13 filter should be used if allergies are a serious concern and there are tobacco smokers in the house.

Where are they made?

Filtersfast brand air filters are proudly made in America. While the manufacturing location of products can vary from company-to-company, Country of Origin laws require that most products manufactured outside of America bear labeling that tells consumers where the product is made. This label should be visable on the product itself or the packaging in which it arrived.

Are the home air filters electrostatically charged?

Yes, Filtersfast, Filtrete, Carrier, among many other air filter brands use an electrostatically charged filter media. Fiberglass air filters are far less common today and were never designed to improve air quality, rather they protect HVAC systems from large dirt and debris.

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Air Filters product list


FC40R1830 18x30 Honeywell Return Grille AC Filter
(FC40R1830)

The Honeywell FC40R1830 18x30 Return Air Grille Filter is a high efficiency, replacement air filter for return grille applications. Honeywell replacement furnace filters capture airborne particles that circulate through the furnace filter.


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FC40R1830 18x30 Honeywell Return Grille AC Filter
Our Price: $41.50
Retail: $68.00
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Hunter 30963 HEPAtech Filter for 30710
(30963)

The Hunter 30963 HEPAtech Filter Replacement is a replacement air filter for certain Hunter HEPAtech Air Purifier Systems, specifically the Hunter HEPAtech 30710, Hunter HEPAtech 30711, Hunter HEPAtech 30714, and Hunter HEPAtech 30721A.


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Hunter 30963 HEPAtech Filter for 30710
Our Price: $33.95
Retail: $39.95
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Universal Carbon Range Hood Filter - Trim to Fit
(RYM1518C)

This Universal Carbon Oven Range Hood Filter (RYM1518C) is a trim to fit oven range oven carbon filter for use with many over the range oven hoods (ducted and non-ducted), microwave ovens, and other similar applications requiring odor elimination. I


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Universal Carbon Range Hood Filter - Trim to Fit
Our Price: $14.99
Retail: $19.99
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Trane 21x23x5 Perfect Fit BAYFTAH23M Filter 2pk
(FFC21235TRNM8)

For an economical alternative to the genuine OEM Trane 21x23x5 Perfect Fit BAYFTAH23M Filter, try this compatible Trane MERV 8 21x23x5 Perfect Fit BAYFTAH23M Filter.


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Trane 21x23x5 Perfect Fit BAYFTAH23M Filter 2pk
Our Price: $65.00
Retail: $70.00
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Honeywell 20x20x5 Filter FC100A1011 - MERV 13 2pk
(FFC20205HONM13)

The Honeywell 20x20x5 Filter FC100A1011 is a compatible version of the genuine Honeywell FC100A1011 20"x20" Media AC Filter. This filter replacement is also known as part number FFC20205HONM13.


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Honeywell 20x20x5 Filter FC100A1011 - MERV 13 2pk
Our Price: $79.99
Retail: $90.00
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Filters Fast Trion Compatible 20x20x5, 2-pack
(FFC20205TAB)

The Filters Fast Compatible 20x20x5 MERV 11 Air Filter can be used as an upgrade for Trion Air Bear part number 255649-103. Upgrade your Trion Air Bear Filter today for just a few extra dollars!


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Filters Fast Trion Compatible 20x20x5, 2-pack
Our Price: $48.80

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GE WB02X10700 Compatible Oven Range Hood Filter
(OEMRHP0808)

This is an Oven Hood Range Filter (OEMRHP0808) made by American Metal Filter Company which is a compatible replacement range vent hood filter for the GE WB02X10700 range filter. This oven range hood filter is a combination filter composed of carbon


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GE WB02X10700 Compatible Oven Range Hood Filter
Our Price: $8.99
Retail: $9.99
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Lennox X0581 MERV 10 Pleated Furnace Filter Media
(X0581)

This Lennox X0581 MERV 10 Pleated Furnace Filter Media provides high efficiency filtration. This Merv 10 furnace filter requires no assembly or combs.


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Lennox X0581 MERV 10 Pleated Furnace Filter Media
Our Price: $25.10
Retail: $29.99
You Save 16%!

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Lennox X1152 MERV 10 Pleated Media Furnace Filter
(X1152)

The Lennox X1152 MERV 10 Pleated Media Furnace Filter is the replacement filter cartridge for several Lennox, Trion Air Bear, other air cleaner systems requiring 20x25x5 furnace filters.


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Lennox X1152 MERV 10 Pleated Media Furnace Filter
Our Price: $27.35
Retail: $29.75
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Lennox X8348 MERV 10 Filter Maintenance Kit
(X8348)

The Lennox X8348 MERV 10 Filter Maintenance Kit is a maintenance kit for the Lennox PCO-20C PureAir Air Purification System. This PureAir maintenance kit includes: one MERV 10 filter, also known as part number X6667; one catalyst insert, also known

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Lennox X8348 MERV 10 Filter Maintenance Kit
Our Price: $224.30
Retail: $254.95
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GeneralAire 5FM1625 MERV 10 Filter Media Cartridge
(4511)

The GeneralAire 5FM1625 MERV 10 Filter Media Cartridge is the correct replacement filter for the following models of air cleaners: GeneralAire MAC1400 GeneralAire MAC1400M Trion AirBear Supreme 1400 This GeneralAire replacment filter measu


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GeneralAire 5FM1625 MERV 10 Filter Media Cartridge
Our Price: $29.99
Retail: $34.99
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Trane Perfect Fit BAYFTAH21M Compat. 21.5x21x5 2pk
(FFC215215TRN)

These MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These Filters Fast Air Filters specifically replace Trane part number BAYFTAH21M or FLR06072, which is a 21.5x21x5 Air Filter used in several Trane Air Cleaners


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Trane Perfect Fit BAYFTAH21M Compat. 21.5x21x5 2pk
Our Price: $98.00

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General Aire 16x25 MERV10 Filter Media GA100A29
(4352)

The General Aire GA100A29 16x25 MERV10 Filter Media is the correct replacement filter for Honeywell F100 Series and Honeywell F150 Series Media Style Air Cleaners. These filters remove airborne particles to 1.0 micron to provide healthier indoor air.


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General Aire 16x25 MERV10 Filter Media GA100A29
Our Price: $29.99
Retail: $39.99
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GeneralAire HF500 HEPA Filter for AC500
(4620)

The GeneralAire HF500 HEPA Filter for AC500 is a replacement air filter for the GeneralAire Model AC500 Air Cleaner. This HEPA filter is 99.7% efficient at reducing airborne particles down to 0.30 microns. This HEPA air filter, also known as the RHF


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GeneralAire HF500 HEPA Filter for AC500
Our Price: $94.62
Retail: $149.99
You Save 37%!

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Trane Perfect Fit BAYFTFR17P4A Filter-17.5x27x1
(BAYFTFR17P4A)

The Trane Perfect Fit BAYFTFR17P4A Filter - 17.5x27x1 fits several air cleaner models manufactured by Trane. This Trane Perfect Fit filter is 1 inch and pleated for maximum purification of your air. This Trane furnace filter measures approximately 1


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Trane Perfect Fit BAYFTFR17P4A Filter-17.5x27x1
Our Price: $16.52
Retail: $19.99
You Save 17%!

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Hunter 30925 HEPAtech Purifier Filter
(30925)

The Hunter 30925 HEPAtech v Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


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Hunter 30925 HEPAtech Purifier Filter
Our Price: $23.00
Retail: $34.00
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Trane 21.5x21x5 Perfect Fit Filter BAYFTAH21M M13
(FFC215215TRNM13)

The Trane 21.5x21x5 Perfect Fit Filter BAYFTAH21M is a compatible economical alternative for the genuine Trane 21.5x21x5 Perfect Fit Filter that comes in a 2-pack value set.

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Trane 21.5x21x5 Perfect Fit Filter BAYFTAH21M M13
Our Price: $110.00
Retail: $140.00
You Save 21%!

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Aprilaire 201 Compatible Media Filter 2-Pack
(SGMPR-B)

The Space-Gard SGMPR-B Compatible MERV 11 Media Filter (2-Pack) come pre-assembled and replace AprilAire 201 air filters for use on Space-Gard Models 2200 & 2250 Air Cleaners.


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Aprilaire 201 Compatible Media Filter 2-Pack
Our Price: $56.21
Retail: $59.99
You Save 6%!

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Lennox 92X09 HEPA 40/60 Charcoal Carbon Filter
(92X09)

This Lennox Healthy Climate Filter offers efficient air-filtration performance. This Lennox HEPA 60 carbon filter should be replaced every 2-5 years.


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Lennox 92X09 HEPA 40/60 Charcoal Carbon Filter
Our Price: $35.70
Retail: $48.25
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Carrier 356066-0601 EACBAXCC0020 PreFilter 2pk
(356066-0601)

The Carrier 356066-0601 Pre Filter is a genuine OEM factory replacement pre filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0020 Electronic Air Cleaner.


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Carrier 356066-0601 EACBAXCC0020 PreFilter 2pk
Our Price: $33.01
Retail: $39.99
You Save 17%!

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Bionaire 611D Air Cleaner Replacement Filter
(611D R)

The Bionaire 611D Air Cleaner Replacement Filter fits the following models of air cleaners: Bionaire LP1000 Bionaire LP1500H Bionaire 83130 This Bionaire 611D replacement filter is a dual air filter cartridge, with a main filter as well as a


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Bionaire 611D Air Cleaner Replacement Filter
Our Price: $10.99
Retail: $14.99
You Save 27%!

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General Aire 20x25 MERV10 Filter Media GA100A37
(4356)

The GeneralAire GA100A37 MERV10 Filter Media measures 20"x25x4" approx., and is the correct replacement filter for Source 1 S1 MAC 10202505, Trion Air Bear Supreme 2000, Skuttle DBO-0025-020, Ultravation 90-007 & Honeywell FC100A1037 Air Cleaners.


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General Aire 20x25 MERV10 Filter Media GA100A37
Our Price: $29.99
Retail: $39.99
You Save 25%!

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GeneralAire 13415 MERV 11 Filter Media for AC4
(GA 4401)

The GeneralAire air cleaner filter replacement is manufactured for your AC4 furnace air cleaner. This air cleaner filter cartridge features a MERV 11 rating that will capture particulates down to 3 microns in size. This genuine GeneralAire product i


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GeneralAire 13415 MERV 11 Filter Media for AC4
Our Price: $29.99

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6-Pack Trion Air Bear Cub Filter 16x25x3 MERV 11
(259112-101 6Pack)

The Trion Air Bear Cub Filter 16x25x3 MERV 11 6-Pack can be used Trion AirBear Air Cleaners and all air cleaners that need 16"x25"x3" air filters. These Trion filters are an economical upgrade from simple poly-pleated or fiberglass filters.


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6-Pack Trion Air Bear Cub Filter 16x25x3 MERV 11
Our Price: $89.99
Retail: $109.99
You Save 18%!

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Trion Air Bear Supreme 1400 Comp Air Filters 2-Pk
(AB-51625-8)

The Trion AB-51625-8 replaces the following Trion Air Bear air filters: Air Bear 1400 - 255649-103 Air Bear 1400 - 229990-103 Air Bear 2000 - 255649-102


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Trion Air Bear Supreme 1400 Comp Air Filters 2-Pk
Our Price: $29.95
Retail: $34.95
You Save 14%!

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Filters Fast - Air Filters

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