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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


Lennox X0444 MERV 11 Pleated Furnace Filter Media
(X0444)

The Lennox X0444 MERV 10 Pleated Furnace Filter Media is a filter for your HVAC system. This furnace filter media is known as the x0444 and uses a MERV 10 air filter.The MERV 10 rating will provide your home with significant air cleaning capability


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Lennox X0444 MERV 11 Pleated Furnace Filter Media
Our Price: $29.95
Retail: $39.99
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FiltersFast Trane Perfect Fit BAYFTFR17M 17.5x27x5 2pk
(FFC175275TRN)

These MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These Filters Fast Air Filters specifically replace Trane part number BAYFTFR17M or FLR06069, which is a 17.5x27x5 Air Filter used in several Trane Air Cleaner.


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FiltersFast Trane Perfect Fit BAYFTFR17M 17.5x27x5 2pk
Our Price: $69.99
Retail: $99.99
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Filters Fast Trion Compatible 16x25x5, 2-pack
(FFC16255TAB)

The Filters Fast Compatible 16x25x5 MERV 11 Air Filter can be used as an upgrade for Trion Air Bear part number 255649-105. Upgrade your Trion Air Bear Filter today for just a few extra dollars!


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Filters Fast Trion Compatible 16x25x5, 2-pack
Our Price: $55.00
Retail: $83.00
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Honeywell 20X25 Air Filter Replacement - MERV 13
(FC200E1037)

The Honeywell 20X25 Air Filter Replacement is a MERV 13 rated high efficiency media air cleaner that can be used in all compatible size air ducts plus Honeywell cleaners that require a 20"W x 25"L x 4"D filter. It will also fit all Aprilaire, Space-


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Honeywell 20X25 Air Filter Replacement - MERV 13
Our Price: $47.99
Retail: $49.99
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FiltersFast FFC16253TABM8 Trion MERV 8 16x25x3 Filter 3-Pack
(FFC16253TABM8)

The FiltersFast FFC16253TABM8 Trion MERV 8 16x25x3 Filter compatible MERV 8 filter replacement. This Air Bear Cub Filter is also known as part number FFC16253TABM8.


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FiltersFast FFC16253TABM8 Trion MERV 8 16x25x3 Filter
Our Price: $48.99

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Holmes HWF64 Humidifier Filter
(HWF64)

The Holmes HWF64 Humidifier Filter is designed to maintain optimal peformance of your Holmes Humidifier. Fits models HM1645, HM1730, HM1745, HM1750, and HM2200.


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Holmes HWF64 Humidifier Filter
As Low As: $14.99
Retail: $25.95
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Lennox X6675 MERV 16 Furnace Filter Replacement
(X6675)

The Lennox X6675 is a MERV 16 filter for your home. This air filter media is also known as a healthy climate air filter and is designed to fit the Lennox HCC20-28 air cleaner model.

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Lennox X6675 MERV 16 Furnace Filter Replacement
Our Price: $129.95
Retail: $149.99
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Whirlpool 8171434 Large Pre-Filter 4-Pack
(8171434)

Whirlpool Whispure 8171434 Pre-Filters fit Whirlpool Models AP350, AP450, and AP510. This Activated Carbon Pre-filter pre-cleans the air by helping reduce odors as it filters out larger particles, therefore extending the life of your HEPA filter.


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Whirlpool 8171434 Large Pre-Filter
Our Price: $47.96

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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: $17.52
Retail: $19.99
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Carrier EXPXXFIL0024 EZ-FLEX Air Purifier Filter
(EXPXXFIL0024)

The Carrier EXPXXFIL0024 Air Purifier Filter is a genuine OEM factory replacement air filter for Bryant, Carrier, Payne, Day-Night, as well as certain Honeywell, Space-Gard, and Trion air purifiers. It will fit many compatible air purifiers includin


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Carrier EXPXXFIL0024 EZ-FLEX Air Purifier Filter
Our Price: $41.95
Retail: $99.99
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Trion Air Bear Home Air Filter 16x25x3, 255649-101
(255649-101)

The Trion Air Bear Media AC Filter 16x25x3 part number 255649-101 is a genuine Trion Air Bear pleated media filter. The 255649101 can be used in Trion models Air Bear TM and Air Bear Cub. Replaces 229990-101 and 229990-001.


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Trion Air Bear Home Air Filter 16x25x3, 255649-101
As Low As: $21.49
Retail: $35.00
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Honeywell FC40R1003 Return Grille Filter
(FC40R1003)

The Honeywell FC40R1003 a high-efficiency, replacement filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 20x20x4. Genuine Honeywell Part.


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Honeywell FC40R1003 Return Grille Filter
As Low As: $43.95
Retail: $73.34
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Honeywell 38002 Universal Replacement Pre-Filter
(38002)

The Honeywell Universal Replacement Pre-Filter 38002 can be used in place of pre-filters 32002, 33002, 34002, and 35002. This pre-filter fits all Round Honeywell HEPA Air Cleaner Models. Genuine Honeywell part.


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Honeywell 38002 Universal Replacement Pre-Filter
Our Price: $13.95
Retail: $15.95
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3M Filtrete Dust & Pollen Furnace Filter 6-Pack LB
(Dust and Pollen 6-Pk)

The 3M Filtrete Dust & Pollen Furnace Filter is an electrostatically charged furnace filter ideal for high velocity HVAC systems. 3M Filtrete filters are an economical upgrade from cheap one month filters.


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3M Filtrete Dust & Pollen Furnace Filter 6-Pack LB
Our Price: $58.25
Retail: $60.11
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Trion Air Bear Supreme Filter 20x20x5 MERV11 4-PacK
(259112-103 4pack)

The 259112-103 is the correct filter replacement for the following Trion Air Bear and Air Bear Supreme air cleaning systems.


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Trion Air Bear Supreme Filter 20x20x5 MERV11 4-PacK
Our Price: $110.99
Retail: $189.99
You Save 42%!

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Trane BAYFTAH21M2 Replacement Air Filter 21.5x21x5
(BAYFTAH21M2)

The Trane BAYFTAH21M2 Replacement Air Filter 21.5x21x5 fits the TFM215B0AH0 Perfect Fit High Efficiency Air Cleaner. This Trane Perfect Fit filter has a MERV 8 rating that helps purify your air and improve overall indoor air quality. Measuring appro


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Trane BAYFTAH21M2 Replacement Air Filter 21.5x21x5
As Low As: $42.95
Retail: $49.99
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FiltersFast Brand White Rodgers 20x26x5 F825-0549 2Pack
(FFC20265WRM8)

The FiltersFast Brand 20x26x5 Air Filter F825-0549 is a compatible alternative for the OEM White Rodgers 20x26x5 Air Filter. This filter is made of fine carbon powder bonded to lofted polyester media for odor reduction.


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FiltersFast Brand White Rodgers 20x26x5 F825-0549 2Pack
Our Price: $40.99
Retail: $50.00
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Holmes HAPF21, 9000436 Replacement Filter
(HAPF21)

The Holmes HAPF21 Replacement Filter is the main HEPA filter in Holmes models HAP222, HAP221, HAP220, HAP223, and HAP2234. Also known as part number HAPF21CS.


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Holmes HAPF21, 9000436 Replacement Filter
Our Price: $10.00
Retail: $11.00
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Lennox X8790 MERV 16 Air Filter Replacement
(X8790)

The Lennox X8790 MERV 16 Air Filter Replacement is a replacement air filter for the Lennox PCO14-23 PureAir Air Filtration System. This furnace filter measures approximately 20" x 21" x 5" and features a MERV 16 rating. A higher MERV rating results


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Lennox X8790 MERV 16 Air Filter Replacement
Our Price: $119.95
Retail: $229.00
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Aprilaire 4119 - Spacegard Air Filter Pleat Spacer
(Aprilaire 4119)

This Spacegard Aprilaire 2200 Filter Pleat Spacer (Aprilaire 4119) is used in the Spacegard Aprilaire 2200 Air Cleaner, Spaceguard Aprilaire 2250 Air Cleaner, and other compatible Spaceguard Aprilaire 2200 Series air cleaner models. There are five p


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Aprilaire 4119 - Spacegard Air Filter Pleat Spacer
Our Price: $19.95
Retail: $24.99
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Carrier GAPCCCAR2420 Air Purifier Filter
(GAPCCCAR2420)

The Carrier GAPCCCAR2420 Air Purifier Filter is a genuine OEM factory replacement air filter for the Carrier Infinity Air Purifier, Bryant Perfect Air Purifier, as well as other compatible air purifiers made by BDP, Payne, Day and Night Infinity, an


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Carrier GAPCCCAR2420 Air Purifier Filter
As Low As: $99.95
Retail: $119.99
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FiltersFast FF 30900 Replacement For Hunter 30900
(FF 30900)

The FF 30900 Filter Replacement is a compatible version of the Hunter 30900 HEPAtech Purifier Filter.


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FiltersFast FF 30900 Replacement For Hunter 30900
Our Price: $16.99
Retail: $24.99
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FiltersFast Trane Perfect Fit BAYFTFR21M 21x27x5 2pk
(FFC21275TRNM11)

These MERV 11 FiltersFast Brand compatible Furnace Filters are replacement filters for Trane Perfect Fit Air Filters. These Filters Fast Air Filters replace Trane part number BAYFTFR21M or FLR06070 , which is used in several Trane Air Cleaner models


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FiltersFast Trane Perfect Fit BAYFTFR21M 21x27x5 2pk
Our Price: $89.95
Retail: $109.95
You Save 18%!

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FiltersFast Trion 20x20x5 Air Bear Filter MERV 13 2-Pack
(FFC20205TABM13)

The Trion 20x20x5 Air Bear Furnace Filter is the compatible version of the genuine Trion Air Bear Media Filter 20x20x5, 255649-103.


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FiltersFast Trion 20x20x5 Air Bear Filter MERV 13
Our Price: $59.96

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FiltersFast Brand Trane Perfect Fit 17.5x27x5 MERV13 -2
(FFC175275TRN M13)

These FiltersFast Brand MERV 13 Furnace Filters replace Trane Perfect Fit Air Filters with the part number BAYFTFR17M or FLR06069, which are 17.5x27x5 air filters used in several Trane Air Cleaner models.

Free shipping within the continental United States!

In Stock! Ships in 1 to 2 business days.
FiltersFast Brand Trane Perfect Fit 17.5x27x5 MERV13 -2
Our Price: $89.99
Retail: $116.99
You Save 23%!

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