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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:


TopTech TT-FM-2020 TechPure 20x20x4 MERV 11 Filter
(TT-FM-2020)

The TopTech TT-FM-2020 TechPure 20x20x4 MERV 11 Filter removes many allergens, dust, pollen and other airborne pollutants.


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TopTech TT-FM-2020 TechPure 20x20x4 MERV 11 Filter
Our Price: $32.95
Retail: $39.99
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Trion Air Bear Supreme 2000 Filter 20x25x5
(259112-102)

The Trion Air Bear Supreme 2000 Filter 20x25x5 is a whole house air filter with a MERV 11 rating that captures 90% of particles that are between 3 to 10 microns in size. This air bear filter boasts efficient synthetic material that contains extended


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Trion Air Bear Supreme 2000 Filter 20x25x5
Our Price: $30.99
Retail: $39.99
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Lennox X0585 MERV 10 Pleated Media Filter - HCC14 Genuine Part
(X0585)

This Lennox Lennox X0585 MERV 10 Pleated Media Filter offers a pleated a design for more efficient and effective filtration.


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Lennox X0585 MERV 10 Pleated Media Filter - HCC14 Genuine Part
As Low As: $35.95
Retail: $39.99
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FiltersFast A10PR R Replacement For Aprilaire 110, 220, 500, 550, 558
(A10PR R)

The FiltersFast A10PR R is the correct replacement filter for Aprilaire Humidifier Models 110, 220, 500, 550, 558.


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FiltersFast A10PR R Replacement For Aprilaire 110, 220, 500, 550, 558
As Low As: $6.99
Retail: $10.99
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FiltersFast A35PR Replacement for Trane BAYPAD02A1310A
(T BAYPAD02A1310A 1R)

The FiltersFast Metal Humidifier Pad - Trane BAYPAD02A1310A is the correct compatible replacement for the following models of furnace humidifiers: Trane THUMD300ABA00B Trane THUMD500APA00 This metal Trane humidifier water panel filter has ap


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FiltersFast A35PR Replacement for Trane BAYPAD02A1310A
As Low As: $7.95
Retail: $9.99
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GeneralAire 1099-20 Evaporator Filter Pad - 7047
(7047)

The GeneralAire 1099-20 Evaporator Filter Pad is a replacement filter for the GeneralAire Legacy Model Humidifiers 1099, 1099L, 1099LH, and 1099R. This evaporator pad measures 14 1/4" wide and 12" in height, and collects mineral deposits from the wa


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GeneralAire 1099-20 Evaporator Filter Pad - 7047
As Low As: $16.99
Retail: $19.99
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FiltersFast EF1 R - Replacement For Kenmore 14410 Emerson MoistAir EF1
(EF1 R)

The EF1 R is the correct replacement for the Kenmore EF1-EF21 14410 Emerson MoistAir MAF 1 Filter.


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FiltersFast EF1 R - Replacement For Kenmore 14410 Emerson MoistAir EF1
As Low As: $10.49
Retail: $19.99
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Lennox X6667 MERV 11 Air Filter Media Replacement
(X6667)

The Lennox X6667 MERV 11 Air Filter Media Replacement is a replacement air filter for Lennox Healthy Climate PureAir PCO-20C air cleaners. This box media utilizes a MERV 11 pleated filter that captures particles as small as 0.3 microns in size.


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Lennox X6667 MERV 11 Air Filter Media Replacement
Our Price: $35.95
Retail: $39.99
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Lennox X8309 MERV 10 Expandable Filter Replacement
(X8309)

The Lennox X8309 MERV 10 Expandable Filter Replacement is a replacement expandable filter for the Lennox 16x25x5 model air cleaner. This pleated air filter measures approximately 16x25x5 and boasts a MERV 10 rating.


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Lennox X8309 MERV 10 Expandable Filter Replacement
Our Price: $33.95
Retail: $39.50
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Carrier EXPXXFIL0020 EZ-FLEX Air Purifier Filter
(EXPXXFIL0020)

The Carrier EXPXXFIL0020 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 EXPXXFIL0020 EZ-FLEX Air Purifier Filter
Our Price: $41.95
Retail: $49.95
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FiltersFast Replacement For Aprilaire SpaceGard 2400 MERV8 2-Pack
(FFC162766SGM8)

The FiltersFast Brand Aprilaire SpaceGard 2400 MERV8 2-Pack Air Filter is an economical compatible alternative for the Aprilaire SpaceGard 2400 Air Cleaner Systems requiring a 16x27x6 media filter.


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FiltersFast Replacement For Aprilaire SpaceGard 2400 MERV8 2-Pack
Our Price: $43.99
Retail: $50.00
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FiltersFast Brand 16x25x5 Honeywell FC100A1029 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.


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FiltersFast Brand 16x25x5 Honeywell FC100A1029 2-Pack
Our Price: $44.95
Retail: $59.99
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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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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

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Carrier GAPCCCAR2420 Air Purifier Filter
As Low As: $78.95
Retail: $119.99
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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

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Lennox X8788 MERV 16 PureAir Filter Replacement
Our Price: $101.95
Retail: $119.99
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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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Lennox X6672 HCF16-16 Healthy Climate 16x25x5 MERV16 Filter
(X6672)

The Lennox X6672 HCF16-16 Healthy Climate 16x25x5 MERV 16 Filter Replacement is a replacement air filter for the Lennox HCC16028 Healthy Climate True Fit Cabinet. This furnace filter measures approximately 16x25x5 and features a MERV 16 rating for


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Lennox X6672 HCF16-16 Healthy Climate 16x25x5 MERV16 Filter
Our Price: $71.95
Retail: $149.95
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Carrier GAPCCCAR1620 Infinity Merv 15 Air Purifier Filter
(GAPCCCAR1620)

The Carrier GAPCCCAR1620 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, and Totaline.

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Carrier GAPCCCAR1620 Infinity Merv 15 Air Purifier Filter
As Low As: $77.95
Retail: $94.99
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FiltersFast 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 Replacement For Trion MERV 8 Filter 20x20x5 2-Pack
Our Price: $42.99
Retail: $50.00
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Trane Perfect Fit BAYFTAH23M2 21"x23.5"x5"
(BAYFTAH23M2)

The Trane Perfect Fit BAYFTAH23M2 23.5x21x5 Air Filter is a replacement air filter for the Trane model BAYFRAME215A and TFM215A0AH1 air cleaners. The Trane Perfect Fit filter measures approximately 23.5" x 21" x 5" and features a MERV 8 rating for t


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Trane Perfect Fit BAYFTAH23M2  21"x23.5"x5"
As Low As: $43.99
Retail: $50.99
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FiltersFast A35PR Replacement for Carrier P1103545
(Carrier P1103545 1R)

The Carrier P1103545 Metal Water Panel Filter measures 10" x 13-1/4" x 1-1/2" (approx), and is the correct replacement evaporator pad for a variety of humidifiers manufactured by Bryant, Carrier, Honeywell, Lennox and Totaline.


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FiltersFast A35PR Replacement for Carrier P1103545
As Low As: $7.95
Retail: $9.99
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BestAir R14ALLM Universal Cut to Fit Carbon Pre Filter-2-Pack
(R14ALLM)

The Universal Cut to Fit Carbon Pre Filter-2 Pack is a replacement pack of two carbon pre-filters that fit a variety of air purifiers and air cleaners, including models from Bionaire, DeLonghi, Duracraft, Holmes, Honeywell Enviracare, Hunter QuietFl


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BestAir R14ALLM Universal Cut to Fit Carbon Pre Filter-2-Pack
Our Price: $17.99
Retail: $19.99
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FiltersFast Brand Trane Perfect Fit BAYFTAH21M 21.5x21x5 (2 Pack)
(FF-BAYFTAH21M)

These MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These FiltersFast Air Filters specifically replace Trane part number BAYFTAH21M, BAYFTAH21M2 or FLR06072.


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FiltersFast Brand Trane Perfect Fit BAYFTAH21M 21.5x21x5 (2 Pack)
Our Price: $59.95
Retail: $99.00
You Save 39%!

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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-


In stock! Ships in 1 business day.
Honeywell 20X25 Air Filter Replacement - MERV 13
Our Price: $48.99
Retail: $49.99
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FiltersFast Trane Perfect Fit BAYFTAH23M 21x23.5x5 2pk
(FFC21235TRN)

These MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These FiltersFast Air Filters specifically replace Trane part number BAYFTAH23M or FLR06073, which is a 21x23.5x5 Air Filter used in several Trane Air Cleaner.


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FiltersFast Trane Perfect Fit BAYFTAH23M 21x23.5x5 2pk
Our Price: $78.95
Retail: $99.00
You Save 20%!

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