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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.

Routine maintenance is a critical part of caring for your home. One area that should not be overlooked is replacing your home’s furnace filters on a regular basis following the manufacturers recommended guidelines. By doing this, you will help prolong the life of your system, as well as help eliminate indoor air contaminates.

Air filters help rid your home of a variety of air pollutants including smog, smoke, pollen, bacteria, pet dander, mold spores, dust, dust mites, debris and virus carrying particles. The MERV rating on furnace filters can help guide you in this area. The higher the rating, the more efficient the air filter will be at eliminating indoor contaminates.

Filtrete, Trion, 3M and Honeywell all manufacture high quality filters in a variety of sizes to meet all of your air filtration needs.


Furnace Filters full product list:


FiltersFast Trane BAYFTFR17M2 Air Filter 17.5x27x5
(BAYFTFR17M2)

The FiltersFast Trane BAYFTFR17M2 has nominal dimensions of 17 1/2 inches x 27 inches x 5 inches.


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FiltersFast Trane BAYFTFR17M2 Air Filter 17.5x27x5
Our Price: $46.99
Retail: $55.99
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FiltersFast FFC16255HONM13 Replacement for Honeywell FC100A1029 - 16x25x5, MERV13
(FFC16255HONM13)

The FiltersFast MERV13 Replaces Honeywell 16x25x5 FC100A1029 is the compatible version of the genuine Honeywell FC100A Series Residential Air Cleaner Filter.


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FiltersFast FFC16255HONM13 Replacement for Honeywell FC100A1029 - 16x25x5, MERV13
Our Price: $75.99
Retail: $89.99
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Honeywell HFC40R1011 Return Grille Filter 20"x25"
(HFC40R1011)

The Honeywell HFC40R1011 20"x25" Return Air Grille Filter is a high efficiency replacement air filter for return grille air filtration applications. Honeywell replacement filters efficiently capture harmful airborne particles such as dust, pet dande


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Honeywell HFC40R1011 Return Grille Filter 20"x25"
Our Price: $35.99
Retail: $49.99
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Honeywell FC40R1078 24x24 Return Air Grille Filter
(FC40R1078)

The Honeywell FC40R1078 Return Air Grille Filter is a high efficiency, replacement air filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 24x24x4.


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Honeywell FC40R1078 24x24 Return Air Grille Filter
Our Price: $35.99
Retail: $49.99
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FiltersFast FFC20255HONM8 Replacement for Honeywell 20x25x5 FC100A1037 2-Pack
(FFC20255HONM8)

The FilterFast Brand Honeywell 20x25x5 FC100A1037 2-Pack is the compatible version of the OEM Honeywell 20x25x5 Air Filter FC100A1037.


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FiltersFast FFC20255HONM8 Replacement for Honeywell 20x25x5 FC100A1037 2-Pack
Our Price: $40.99
Retail: $59.99
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FiltersFast FFC24265TRN Replacement for Trane PerfectFit BAYFTFR24M 24.5x27x5 2-Pack
(FFC24265TRN)

These FiltersFast Brand Trane Perfect Fit BAYFTFR24M 24.5x27x5 MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These FiltersFast Air Filters specifically replace Trane part number BAYFTFR24M, which is a 24.5x27x5


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FiltersFast FFC24265TRN Replacement for Trane PerfectFit BAYFTFR24M 24.5x27x5 2-Pack
Our Price: $70.95
Retail: $110.99
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FiltersFast FFC20205TABM13 Replacement for 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 FFC20205TABM13 Replacement for Trion 20x20x5 Air Bear Filter - MERV 13
Our Price: $65.90

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Honeywell FC40R1037 12x24 Return Air Grille Filter
(FC40R1037)

The Honeywell FC40R1037 Return Aire Grille Filter is a high efficiency, replacement for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 12x24x4. Genuine Honeywell Part.


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Honeywell FC40R1037 12x24 Return Air Grille Filter
Our Price: $31.99
Retail: $44.99
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FiltersFast FFC16255TAB Trion Compatible 16x25x5, 2-Pack
(FFC16255TAB)

The FiltersFast 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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FiltersFast FFC16255TAB Trion Compatible 16x25x5, 2-Pack
Our Price: $56.00
Retail: $82.99
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FiltersFast FFC175275TRN M13 Replacement for Trane Perfect Fit 17.5x27x5 MERV13 - 2-Pack
(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.

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In Stock! Ships in 2 to 3 business days.
FiltersFast FFC175275TRN M13 Replacement for Trane Perfect Fit 17.5x27x5 MERV13 - 2-Pack
Our Price: $90.99
Retail: $116.99
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Honeywell FC100A1045 21.5" x 27.5" Media Filter
(FC100A1045)

The Honeywell FC100A1045 21.5" x 27.5" Media Filter is a high efficiency Media Air Filter that can be used in Honeywell Model F27F1057. Genuine Honeywell Part.


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Honeywell FC100A1045 21.5" x 27.5" Media Filter
As Low As: $24.99
Retail: $39.99
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Honeywell FC40R1169 14x30 Return Grille Air Filter
(FC40R1169)

The Honeywell FC40R1169 14x30 Return Grille Air Filter is a replacement air filter that fits most return filter grilles. This return air filter grille measures 14" x 30" and features a MERV 10 rating for the reduction of airborne contaminants. The H


In stock! Ships in 1 business day.
Honeywell FC40R1169 14x30 Return Grille Air Filter
Our Price: $34.95
Retail: $41.99
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FiltersFast FFC26215TRNM13 Replacement for Trane BAYFTAH26M, 21x26x5 Perfect Fit - MERV13, 2-Pack
(FFC26215TRNM13)

If you are looking for an economical compatible version of the genuine Trane/American Standard BAYFTAH26M Perfect Fit Air Filter, try this FiltersFast Trane 21x26x5 Perfect Fit BAYFTAH26M M13 with a MERV 13 energy efficiency rating.

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In Stock! Ships in 3 to 4 business days.
FiltersFast FFC26215TRNM13 Replacement for Trane BAYFTAH26M, 21x26x5 Perfect Fit - MERV13, 2-Pack
Our Price: $111.00
Retail: $139.99
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Trion Air Bear Media AC Filter 20x20x5 4-Pack
(255649-103 4pack)

The Trion Air Bear Media AC Filter 20x20x5 part number 255649-103 is a genuine Trion Air Bear pleated media A/C filter. The 255649103 can be used in Trion 20" x 20" Models including model number 455604-019. Replaces 229990-103 and 248713-103.


Out of stock
Trion Air Bear Media AC Filter 20x20x5 4-Pack
Our Price: $79.00
Retail: $99.99
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FiltersFast FFC20205TAB Replacement for Trion 255649-103 2-Pack
(FFC20205TAB)

The FiltersFast 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 and save!


In Stock! Ships in 2 to 3 business days.
FiltersFast FFC20205TAB Replacement for Trion 255649-103 2-Pack
Our Price: $49.80
Retail: $58.99
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Trane BAYFTFR14M2 Replacement Air Filter 14.5x27x5
(BAYFTFR14M2)

The Trane BAYFTFR14M2 Replacement Air Filter 14.5x27x5 is a furnace air filter that fits the TFM145B0FR0 Perfect Fit High Efficiency Air Cleaner. This Trane Perfect Fit filter, also known as a furnace enclosure filter, is MERV 8 rated to purify your


Out of stock
Trane BAYFTFR14M2 Replacement Air Filter 14.5x27x5
Our Price: $43.23
Retail: $50.99
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FiltersFast FFC20265WRM8 Replacement for White Rodgers 20x26x5 F825-0549 2-Pack
(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.


In Stock! Ships in 4 to 5 business days.
FiltersFast FFC20265WRM8 Replacement for White Rodgers 20x26x5 F825-0549 2-Pack
Our Price: $41.99
Retail: $49.99
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Honeywell FC40R1060 16x25 Return Air Grille Filter
(FC40R1060)

Honeywell FC40R1060 16x25 Return Air Grille AC Filter is a high efficiency, replacement air filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 16x25x4.


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Honeywell FC40R1060 16x25 Return Air Grille Filter
Our Price: $34.99
Retail: $49.99
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Trane Perfect Fit BAYFTFR17W1A Washable Prefilter 17.5x27x1
(BAYFTFR17W1A)

The Trane Perfect Fit BAYFTFR17W1A Prefilter 17.5x27x1 is a washable filter with a MERV 5 rating that needs to be changed every 3 months for maximum efficiency. This Trane pre-filter measures approximately 17.5" x 27" x 1", is used with 17.5" enclos


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Trane Perfect Fit BAYFTFR17W1A Washable Prefilter 17.5x27x1
Our Price: $21.95
Retail: $25.99
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Honeywell FC40R1102 Return Grille Filter-14x14x3
(FC40R1102)

The Honeywell FC40R1102 is a high-efficiency, replacement air filter for return grille applications. Designed to capture airborne particles that circulate through the AC filter. Nominal Dimension 14x14x4. Genuine Honeywell Part.


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Honeywell FC40R1102 Return Grille Filter-14x14x3
As Low As: $32.10
Retail: $44.99
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FiltersFast FFC16253TABM13 Replacement for Trion 16x25x3 Air Bear MERV13 3-Pack
(FFC16253TABM13)

The FiltersFast Brand Trion 16x25x3 Air Bear MERV13 3-Pack Filter is a compatible version of the genuine Trion Air Bear Media AC Filter 16x25x3, 255649-101.


In Stock! Ships in 3 to 4 business days.
FiltersFast FFC16253TABM13 Replacement for Trion 16x25x3 Air Bear MERV13 3-Pack
Our Price: $84.00
Retail: $99.99
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FiltersFast FFC16265WRM8 Replacement for White Rodgers 16x26x5 F825-0548 - 2-Pack
(F825-0548-M8)

If you are looking for a FiltersFast Brand economical compatible alternative for the OEM White Rodgers 16x26x5 Air Furnace Filter try this White Rodgers 16x26x5 Furnace Filter Replacement F825-0548.


In Stock! Ships in 3 to 4 business days.
FiltersFast FFC16265WRM8 Replacement for White Rodgers 16x26x5 F825-0548 - 2-Pack
Our Price: $34.95
Retail: $59.99
You Save 42%!

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Honeywell FC40R1045 14x25 Return Air Grille Filter
(FC40R1045)

Honeywell FC40R1045 14x25 Return Air Grille AC Filter is a high efficiency, replacement for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 14x25x4. Genuine Honeywell Part.


In Stock! Ships in 1 to 2 business days.
Honeywell FC40R1045 14x25 Return Air Grille Filter
Our Price: $29.99
Retail: $44.99
You Save 33%!

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Honeywell TRN2321T1 Replacement for Trane BAYFTAH23M, 23.5x21x5 Perfect Fit - 3-Pack
(TRN2321T1)

These three Honeywell air filters are compatible furnace filters that can be used as upgrades over the Trane Perfect Fit filter of the same size. Genuine Trane Perfect Fit filters have only a MERV 8 rating, while these compatible Honeywell furnace f

Free shipping within the continental United States!

In stock! Ships in 1 business day.
Honeywell TRN2321T1 Replacement for Trane BAYFTAH23M, 23.5x21x5 Perfect Fit - 3-Pack
Our Price: $149.00
Retail: $175.99
You Save 15%!

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FiltersFast FFC16255TABM13 Replacement for Trion 16x25x5 Air Bear MERV13 - 2-Pack
(FFC16255TABM13)

The FiltersFast Brand Trion 16x25x5 Air Bear MERV13 2-Pack Furnace Filter is the compatible version of the genuine Trion Air Bear Media AC Filter 16x25x5, 255649-105.

Free shipping within the continental United States!

In Stock! Ships in 2 to 3 business days.
FiltersFast FFC16255TABM13 Replacement for Trion 16x25x5 Air Bear MERV13 - 2-Pack
Our Price: $94.00
Retail: $110.99
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Filters Fast - Furnace Filters

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