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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.

Filters Fast furnace air filters offer an affordable option to excellent indoor air quality. These replacement home furnace filters will cost you much less than what you will save on your energy efficiency.


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Filters Fast Furnace Filters product list


Odor Killer Return Grille Air Filter - MERV 8, 5"
(FFRAGGM)

The Odor Killer Return Grille Air Filter eliminates smoke odors, cigarette odors, pet odors, gases and other contaminants from your indoor air. Since this return grille air filter is 5" deep compared to the standard 1" air filter, its greater surfac


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Odor Killer Return Grille Air Filter - MERV 8, 5"
Our Price: $28.99
Retail: $45.99
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Filters Fast MERV 8 Odor Killer Odor Filter 6-Pack
(FFOKGM 6-pack)

The Filters Fast Odor Killer Odor Filter is the perfect replacement air filter to eliminate smoke odors, cigarette odors, pet odors, gases and other contaminants from your indoor air.


In Stock! Ships in 12 to 13 business days.
Filters Fast MERV 8 Odor Killer Odor Filter 6-Pack
Our Price: $38.99
Retail: $69.99
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Filters Fast Odor Killer Air Filter, 6-pack
(FFOK 6-pack)

The Filters Fast Odor Killer is a MERV 8 two-stage carbon blended filter designed to "kill" odors such as cigarette smoke, pet odors, irritating gases, cooking odors and other bad odors that might be affecting your indoor air quality.


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Filters Fast Odor Killer Air Filter, 6-pack
Our Price: $76.67
Retail: $79.99
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Filters Fast MERV 13 Return Grille Air Filter - 5"
(FFRAG13)

Protect your health, your environment and your wallet with a Filters Fast MERV 13 Return Grille Air Filter. MERV 13 is one of the highest efficiency ratings available, and Filters Fast now offers this rating in a 5" Return Air Grille application.


Discontinued Product Read Description.
Filters Fast MERV 13 Return Grille Air Filter - 5"
Our Price: $39.99
Retail: $49.99
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Filters Fast Odor Killer Return Air Grille Filter
(FFRAGOK)

Filters Fast now offers its 5" Return Air Grille Filters with Odor Killer technology, a MERV 8 two-stage carbon blended filter designed to "kill" odors. FFRAGOK.


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Filters Fast Odor Killer Return Air Grille Filter
Our Price: $45.00
Retail: $59.99
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GeneralAire AC-1 Filter 20x24x5 MERV 8 (2 PACK)
(FFC20245GAM8)

GeneralAire AC-1 Air Filter 20x24x5 is an economical alternative for the OEM GeneralAire AC-1 Air Filter 20x24x5. This furnace filter is part of the GeneralAire AC-1 Series of Residential Air Cleaner Replacement Filters.


Discontinued Product Read Description.
GeneralAire AC-1 Filter 20x24x5 MERV 8 (2 PACK)
Our Price: $56.99
Retail: $79.99
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Trane 21x23.5x5 Perfect Fit BAYFTAH23M Filter 2pk
(FFC23205TRNM8)

For an economical compatible version of the genuine OEM Trane BAYFTAH23M 21x23.5x5 Perfect Fit Filter, try this MERV 8 Trane 21x23.5x5 Perfect Fit BAYFTAH23M replacement filter.


Discontinued Product Read Description.
Trane 21x23.5x5 Perfect Fit BAYFTAH23M Filter 2pk
Our Price: $50.00
Retail: $70.00
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Filters Fast 5" F825-0548 Compatible Filter 2-Pack
(FFC16265WR OKGM)

The FiltersFast F825-0548 5" Compatible Filter can be used in Emerson Model SST14 Air Cleaners, and all air cleaner systems requiring 16"x26"x5" media filter cartridges. These filters remove harmful airborne contaminants for cleaner indoor air.


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Filters Fast 5" F825-0548 Compatible Filter 2-Pack
Our Price: $54.25
Retail: $55.25
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Filters Fast MERV 8 16x27x6 Air Filter 2-Pack
(FFC162766SG OKGM)

The Filters Fast MERV 8 16x27x6 Air Filter 2-Pack is a pack of replacement air filters that is an upgrade over the Aprilaire Space Gard 2400 AC Filter. This 16" x 27" 6" has a MERV 8 rating for the reduction of airborne pollutants like pollen, dir


Discontinued Product Read Description.
Filters Fast MERV 8 16x27x6 Air Filter 2-Pack
Our Price: $45.00
Retail: $59.99
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FiltersFast Trane 21x23x5 Compatible Filter 2-Pack
(FFC21235TRN OKGM)

The Filters Fast 5" Trane Perfect Fit 21x23x5 Compatible FFC21235TRN OKGM is the correct replacement for the following: any air cleaner that requires a 21" x 23" x 5" filter This Filters Fast air filter also replaces Trane Perfect Fit BAYFTAH23


Discontinued Product Read Description.
FiltersFast Trane 21x23x5 Compatible Filter 2-Pack
Our Price: $98.00
Retail: $99.99
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Filters Fast MERV 8 Odor Killer 2" 6-Pack
(FFOKGM 2 INCH)

The Filters Fast MERV8 Odor Killer 2" 6-Pack is an effective replacement charcoal air filter to eliminate pet odors, gases, smoke odors, cigarette odors and other contaminants from your indoor air.


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Filters Fast MERV 8 Odor Killer 2" 6-Pack
Our Price: $49.99
Retail: $99.99
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Filters Fast 4" MERV 8 Odor Killer Filter 6-Pack
(FFOKGM4 6PACK)

The Filters Fast 4" MERV 8 Odor Killer Filter 6-Pack is a set of replacement air filters that can eliminate common odors from your home or office, including pet odors, gaseous odors, and smoke and cigarette odors. These odor killer filters utilize G

Free shipping within the continental United States!

In Stock! Ships in 10 to 11 business days.
Filters Fast 4" MERV 8 Odor Killer Filter 6-Pack
Our Price: $62.99
Retail: $69.99
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Filters Fast 5" Trion Compatible Air Filter 2-Pack
(FFC20255TAB OKGM)

The Filters Fast 5" Trion Compatible FFC20255TAB OKGM is a compatible air filter for Trion Air Bear Air Cleaners that can replace part numbers 255649-102, 229990-002, and 229990-102. This Trion compatible filter features a MERV 8 efficiency rating


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Filters Fast 5" Trion Compatible Air Filter 2-Pack
Our Price: $44.99
Retail: $50.75
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FiltersFast 5" WR Compatible FFC20265WR OKGM
(FFC20265WR OKGM)

The FiltersFast 5" WR Compatible FFC20265WR OKGM is a compatible replacement air filter that is an upgrade over the White Rodgers F825-0549 air filter. The Filters Fast FFC20265WR OKGM 20" x 26" x 5" air filter can be used in several White Rodgers A


Discontinued Product Read Description.
FiltersFast 5" WR Compatible FFC20265WR OKGM
Our Price: $72.99
Retail: $79.99
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FiltersFast 5" Trane BAYFTAH23M Compatible 2-Pack
(FFC23205TRN OKGM)

The Filters Fast 5" Trane PF BAYFTAH23M Compatible FFC23205TRN OKGM fits the following: any air cleaner that calls for a 20" x 23" x 5" filter This Filters Fast air filter also replaces the Trane Perfect Fit BAYFTAH23M filter. This Trane compa


Discontinued Product Read Description.
FiltersFast 5" Trane BAYFTAH23M Compatible 2-Pack
Our Price: $66.66
Retail: $104.99
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FiltersFast 5" Trane BAYFTAH26M Compatible 2-Pack
(FFC26215TRN OKGM)

The Filters Fast 5" Trane PF BAYFTAH26M Compatible FFC26215TRN OKGM fits the following: Any air cleaner that requires a 26" x 21" x 5" filter This Filters Fast air filter is also compatible with the Trane Perfect Fit BAYFTAH26M air filter. Thi


Discontinued Product Read Description.
FiltersFast 5" Trane BAYFTAH26M Compatible 2-Pack
Our Price: $93.00
Retail: $109.99
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Filters Fast FC100A1011 Compatible MERV 8 2-Pack
(FFCOK20205HON OKGM)

The Filters Fast FC100A1011 is a 20x20x5 filter that is a compatible version of the Honeywell FC100A1011. This 20x20x5 MERV 8 filter will keep airborne pollutants and contaminants out of your homes air. Filters Fast air and furnace filters provide


Discontinued Product Read Description.
Filters Fast FC100A1011 Compatible MERV 8 2-Pack
Our Price: $39.99
Retail: $94.99
You Save 58%!

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Filters Fast 20x20x5 Trion Compatible 2-Pack
(FFC20205TAB OKGM)

The FiltersFast 20x20x5 Trion Compatible Filter can be used Trion AirBear and other air cleaners requiring 20"x20"x5" filter cartridges. They remove airborne particles such as pollen, dust, dander, dust, and other allergens from your indoor air.


Discontinued Product Read Description.
Filters Fast 20x20x5 Trion Compatible 2-Pack
Our Price: $48.80
Retail: $94.99
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Filters Fast MERV 8 20x24x5 Air Filter 2-Pack
(FFC20245GA OKGM)

The FiltersFast MERV 8 20x24x5 Air Filter can be used on Generalaire AC-1, Carrier 31MF020100, Byrant 902BXX020, and air cleaners requiring a 20"x24"x5" filter. These effective air filters remove airborne particles to provide healthier indoor air.


Discontinued Product Read Description.
Filters Fast MERV 8 20x24x5 Air Filter 2-Pack
Our Price: $48.25
Retail: $69.99
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Filters Fast FC100A1037 Compatible MERV 8 2-Pack
(FFC20255HON OKGM)

The Filters Fast FC100A1037 Compatible MERV 8 2-Pack is a compatible replacement air filter for the Honeywell FC100A1037 Air Filter. This two pack of Filters Fast air filters features a MERV 8 rating for the reduction of pollen, dust, pet dander,


Discontinued Product Read Description.
Filters Fast FC100A1037 Compatible MERV 8 2-Pack
Our Price: $49.90
Retail: $94.99
You Save 47%!

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Filters Fast MERV 8 16X25X3 Air Filter 3-Pack
(FFC16253TAB OKGM)

The Filters Fast FFCOK16253TAB 16x25x3 filter is a compatible AC filter for your home. This 16x25x3 air filter will replace the Trion Air Bear 255649-10. Filters Fast Trion compatible filters will provide you with the same clean, fresh air at a frac


Discontinued Product Read Description.
Filters Fast MERV 8 16X25X3 Air Filter 3-Pack
Our Price: $65.00
Retail: $89.99
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Filters Fast 14x24x5 MERV 13 Return Grille Filter
(FFRAG13-14245)

The Filters Fast 14x24x5 MERV 13 Return Grille Filter is a replacement air filter that measures 14" x 24" x 5" and boasts a MERV 13 rating. This Filters Fast air furnace filter's 5 inch depth, coupled with its MERV 13 efficiency rating, results the


Discontinued Product Read Description.
Filters Fast 14x24x5 MERV 13 Return Grille Filter
Our Price: $29.99
Retail: $49.99
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Filters Fast 15x20x5 MERV 13 Return Grille Filter
(FFRAG13-15205)

The Filters Fast 15x20x5 MERV 13 Return Grille Filter can be used in almost every air cleaner system requiring a 15"x20"x5" media filter cartridge and remove at least 90% of all particles 1.0-10.0 microns.


In Stock! Ships in 10 to 11 business days.
Filters Fast 15x20x5 MERV 13 Return Grille Filter
Our Price: $41.99
Retail: $48.99
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Filters Fast 16x24x5 MERV 13 Return Grille Filter
(FFRAG13-16245)

The FiltersFast FFRAG13-16245 fits the following: Any air return that calls for a 16" x 24" filter The Filters Fast 16x24x5 MERV 13 Return Grille Filter removes 90% of particles 1.0 to 10.0 microns from your indoor air. This return grill air f


Discontinued Product Read Description.
Filters Fast 16x24x5 MERV 13 Return Grille Filter
Our Price: $41.99
Retail: $48.99
You Save 14%!

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Filters Fast 20x24x5 MERV 13 Return Grille Filter
(FFRAG13-20245)

The Filters Fast air furnace filters Merv 13 is a 20x24x5 inch filter for your home. Filters Fast air filters offer the highest quality in air filtration at a more economical price. This Filters Fast air filter features a Merv 13 rating


Discontinued Product Read Description.
Filters Fast 20x24x5 MERV 13 Return Grille Filter
Our Price: $45.99
Retail: $51.99
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Filters Fast - Filters Fast Furnace Filters

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