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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.


Air Filters full product list:


FiltersFast FFC16255HONM8 Replacement for Honeywell FC100A1029 - 16x25x5, 2-Pack
(FFC16255HONM8)

The FiltersFast Brand 16x25x5 Honeywell FC100A1029 2-Pack is a compatible version of the OEM Honeywell 16x25x5 FC100A1029 Air Filter. This filter is supported by a 30 gauge galvanized expanded metal grid.


In Stock! Ships in 5 to 6 business days.
FiltersFast FFC16255HONM8 Replacement for Honeywell FC100A1029 - 16x25x5, 2-Pack
Our Price: $44.95
Retail: $59.99
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BestAir HW14 Replacement for Honeywell HC-14N
(HW14)

The RPS Best Air HW14 compatible humidifier filter is a cost-saving alternative to the Honeywell oem filter wick. The HW14 is compatible with the Honeywell Quietcare HCM-6009


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BestAir HW14 Replacement for Honeywell HC-14N
As Low As: $13.99
Retail: $16.99
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Trion 255649-102 Replacement for Skuttle 000-0448-002, DB-25-20
(000-0448-002)

The Trion Air Bear 255649-102 is a replacement air filter for the Skuttle DB-25-20 and Skuttle 000-0448-002 air cleaners.


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Trion 255649-102 Replacement for Skuttle 000-0448-002, DB-25-20
Our Price: $28.99
Retail: $29.99
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Honeywell FC40R1029 20x30x3 Return Grille Filter
(FC40R1029)

The Honeywell FC40R1029 is a high-efficiency, replacement filter for return grille applications that will capture airborne particles as small as 0.3 microns in size.


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Honeywell FC40R1029 20x30x3 Return Grille Filter
Our Price: $35.99
Retail: $49.99
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Lennox Y6605 16x26x5 MERV 16 PureAir 100908-11 for PCO3-16-16
(Y6605)

The Lennox Y6605 16x26x5 MERV 16 PureAir 100908-11 Replacement Filter for PCO3-16-16.

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Lennox Y6605 16x26x5 MERV 16 PureAir 100908-11 for PCO3-16-16
Our Price: $91.95
Retail: $109.95
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Trane BAYFTAHEXM2 Expandable Replacement Media
(BAYFTAHEXM2)

The Trane BAYFTAHEXM2 Expandable Replacement Media is a set of two furnace air filters that require the use of a Retrofit Frame Kit to be operable. This Trane Perfect Fit filter measures approximately 20 inches in length and 5 inches in thickness. T


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Trane BAYFTAHEXM2 Expandable Replacement Media
As Low As: $47.99
Retail: $79.99
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BestAir A35WPR Replacement for Aprilaire 600
(A35WPR)

The BestAir A35WPR replacement humidifier filter is an evaporator panel that delivers moisture throughout the air in your home.


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BestAir A35WPR Replacement for Aprilaire 600
As Low As: $11.45
Retail: $14.99
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Lennox X0585 MERV 11 Pleated Media Filter - HCC14 Genuine Part
(X0585)

This Lennox Lennox X0585 MERV 11 Pleated Media Filter offers a pleated a design for more efficient and effective filtration.


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Lennox X0585 MERV 11 Pleated Media Filter - HCC14 Genuine Part
As Low As: $35.95
Retail: $39.99
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Trane BAYFTFREXM2 FLR06232 Expandable Replacement-2-Pack
(BAYFTFREXM2)

The Trane BAYFTFREXM2 FLR06232 Expandable Replacement Media is a pair of furnace air filters that can only be used with a Retrofit Frame Kit already installed. This Trane air filter measures approximately 25" in length x 5" in thickness.


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Trane BAYFTFREXM2 FLR06232 Expandable Replacement-2-Pack
Our Price: $60.95
Retail: $69.99
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Lennox X6667 MERV 10 Air Filter Media Replacement
(X6667)

The Lennox X6667 MERV 10 Air Filter Media Replacement is a replacement air filter for Lennox Healthy Climate PureAir PCO-20C air cleaners. This box media utilizes a MERV 10 pleated filter that captures particles as small as 0.3 microns in size.


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Lennox X6667 MERV 10 Air Filter Media Replacement
Our Price: $35.95
Retail: $39.99
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FiltersFast FFC20256SGM8 Replacement for Aprilaire SpaceGard 2200 MERV8 2-Pack
(FFC20256SGM8)

The FiltersFast Brand Aprilaire SpaceGard 2200 MERV8 2-Pack is an economical alternative for the OEM Aprilaire 2200 and 2250 Air Filter Media Replacement.


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FiltersFast FFC20256SGM8 Replacement for Aprilaire SpaceGard 2200 MERV8 2-Pack
Our Price: $56.99
Retail: $59.99
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3M Filtrete FAPF03 Replacement Air Filter Media
(FAPF03)

The Filtrete FAPF03 Air Filter is the replacement air cleaning filter for the Filtrete Ultra Clean Air Purifier FAP03-RS, FAP03. This electrostatically charged filter attracts & retains microparticles that can aggravate allergies and ...


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3M Filtrete FAPF03 Replacement Air Filter Media
As Low As: $21.95
Retail: $39.99
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Lennox X6675 MERV 16 Furnace Filter Replacement for HCC20-28
(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 for HCC20-28
Our Price: $103.95
Retail: $149.99
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FiltersFast FFC175275TRN Replacement for Trane Perfect Fit BAYFTFR17M 17.5x27x5 2pk
(FFC175275TRN)

These MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These FiltersFast 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 FFC175275TRN Replacement for Trane Perfect Fit BAYFTFR17M 17.5x27x5 2pk
Our Price: $70.99
Retail: $99.99
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Trion Air Bear Media Filter 3-Pack 16x25x5, MERV 8
(255649-105 3pack)

The Trion Air Bear Media AC Filter 16x25x5 part number 255649-105 is a genuine Trion Air Bear pleated media A/C filter. The 255649105 can be used in Trion models Air Bear Supreme 1400 and Trion Air Bear 1400.


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Trion Air Bear Media Filter 3-Pack 16x25x5, MERV 8
Our Price: $61.99
Retail: $111.00
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FiltersFast FFC20205TABM8 Replacement For Trion MERV 8 Filter 20x20x5 2-Pack
(FFC20205TABM8)

The Trion FFC20205TABM8 20x20x5 MERV 8 Compatible Air Bear Furnace Filter replacement is an economical alternative for the OEM - Trion 255649-103 Air Bear Media Filter 20x20x5.


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FiltersFast FFC20205TABM8 Replacement For Trion MERV 8 Filter 20x20x5 2-Pack
Our Price: $42.99
Retail: $50.00
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Aprilaire 45 - 400 Humidifier Panel Filter 2-Pack
(Aprilaire 45)

Never run out of filters during the season with the Aprilaire 45 replacement cool mist humidifier water panel comes in a convenient 2-pack. The Aprilaire humidifier pad is the key component for generating humidity in your Aprilaire 400 humidifier.


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Aprilaire 45 - 400 Humidifier Panel Filter 2-Pack
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Retail: $39.99
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BestAir H85 Replacement for Holmes HWF62 Humidifier Filter - HM1280, HM1700
(HWF62)

The BestAir H85's design and technology features a built-in protection that inhibits the growth of bacteria, mold, and mildew that cause bad odors and stains.


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BestAir H85 Replacement for Holmes HWF62 Humidifier Filter - HM1280, HM1700
As Low As: $9.95
Retail: $14.99
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Skuttle 000-0448-001, DB-25-16 Air Cleaner Filter - 25x16x5
(000-0448-001)

Skuttle 000-0448-001 Air Cleaner Filters measure 25"x16"x5", & effectively reduce airborne particles such as pet dander, mold spores, dust, dust mites, pollen and other allergens from your indoor environment.


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Skuttle 000-0448-001, DB-25-16 Air Cleaner Filter - 25x16x5
Our Price: $31.45
Retail: $34.99
You Save 10%!

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FiltersFast FFC26215TRN Replacement for Trane Perfect Fit BAYFTAH26M 21x26x5 2pk
(FFC26215TRN)

These FiltersFast MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These FiltersFast Air Filters specifically replace Trane part number BAYFTAH26M, which is a 21x26x5 Air Filter used in several Trane Air Cleaner

Free shipping within the continental United States!

In Stock! Ships in 3 to 4 business days.
FiltersFast FFC26215TRN Replacement for Trane Perfect Fit BAYFTAH26M 21x26x5 2pk
Our Price: $94.00
Retail: $199.99
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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: $22.49
Retail: $35.00
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Lennox X8788 MERV 16 PureAir Filter Replacement
(X8788)

The Lennox X8788 MERV 16 filter is made for your PureAir PC020-28 unit. Also known as a healthy climate filter, this pleated filter will remove harmful airborne contaminants from your home. If you or your family members suffer from asthma or allergi

Free shipping within the continental United States!

In Stock! Ships in 4 to 5 business days.
Lennox X8788 MERV 16 PureAir Filter Replacement
Our Price: $101.95
Retail: $119.99
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GeneralAire 6FM1625 MERV 11 Replacement for GeneralAire 5FM1625
(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 6FM1625 MERV 11 Replacement for GeneralAire 5FM1625
As Low As: $19.95
Retail: $29.99
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FiltersFast FFC21235TRNM8 Replacement for Trane 21x23x5 Perfect Fit BAYFTAH23M 2-Pack
(FFC21235TRNM8)

For an economical alternative to the genuine OEM Trane 21x23x5 Perfect Fit BAYFTAH23M Filter, try this FiltersFast Brand 21x23x5 Perfect Fit BAYFTAH23M 2pk.


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FiltersFast FFC21235TRNM8 Replacement for Trane 21x23x5 Perfect Fit BAYFTAH23M 2-Pack
Our Price: $66.00
Retail: $70.00
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FiltersFast FFC215215TRNM8 Replacement for Trane 21x21.5x5 BAYFTAH21M FLR06072 2-Pack
(FFC215215TRNM8)

This FiltersFast Filter for Trane 21x21.5x5 BAYFTAH21M 2 Pack Model FLR06072 and BAYFTAH21M2 is an economical compatible version of the genuine OEM Trane Perfect Fit 21.5x21x5 Filter.


In Stock! Ships in 5 to 6 business days.
FiltersFast FFC215215TRNM8 Replacement for Trane 21x21.5x5 BAYFTAH21M FLR06072 2-Pack
Our Price: $49.95
Retail: $70.00
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Filters Fast - Air Filters

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