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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.


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Air Filters product list


Honeywell 50000293-004 Post Filter 12.5x20 2-Pack
(50000293-004)

The Honeywell 50000293-004 Post Filter 12.5x20 2-Pack is a replacement post filter for the 20x25 and 20x12.5 F300E and F50F air cleaners. The Honeywell post filter increases the efficiency of your Honeywell electronic air purifier model and has only


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Honeywell 50000293-004 Post Filter 12.5x20 2-Pack
As Low As: $40.95
Retail: $49.99
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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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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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FiltersFast Brand Trane 21x27x5 Perfect Fit BAYFTFR21M
(FFC21275TRNM8)

The FiltersFast Brand Trane 21x27x5 Perfect Fit BAYFTFR21M Filter is an economical compatible alternative to the genuine OEM Trane 21x27x5 Perfect Fit BAYFTFR21M Filter.


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FiltersFast Brand Trane 21x27x5 Perfect Fit BAYFTFR21M
Our Price: $66.00
Retail: $70.00
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Lennox X0583 MERV 11 Air Cleaner Media Filter
(X0583)

This Lennox X0583 MERV 11 Air Cleaner Media Filter needs to be replaced every 6 months. The Lennox Furnace Filter Media is an excellent filter for someone who wants a significant upgrade over standard fiberglass filters from the hardware store.


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Lennox X0583 MERV 11 Air Cleaner Media Filter
Our Price: $35.95
Retail: $104.00
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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: $48.99
Retail: $49.99
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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: $100.95
Retail: $119.99
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FiltersFast Brand 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 Brand Aprilaire SpaceGard 2200 MERV8 2-Pack
Our Price: $56.99
Retail: $59.99
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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: $43.95
Retail: $49.99
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Lennox X0445 MERV 11 Pleated Furnace Filter Media
(X0445)

This Lennox X0445 MERV10 Pleated Furnace Filter Media is a part of the Lennox “Healthy Climate” line of indoor air quality products. This Lennox Healthy Climate Filter is an expandable media air filter.


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Lennox X0445 MERV 11 Pleated Furnace Filter Media
Our Price: $32.95
Retail: $35.95
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TopTech DTT-FM-2025 20x25x4 MERV 11 Filter
(DTT-FM-2025)

The TopTech DTT-FM-2025 20x25x4 MERV 11 Filter removes many allergens, dust, pollen and other airborne pollutants.


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TopTech DTT-FM-2025 20x25x4 MERV 11 Filter
Our Price: $35.99
Retail: $39.99
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FiltersFast Brand Trion Air Bear Filter 20x25x5 2-Pack
(FFC20255TABM13)

The FiltersFast Brand Trion Air Bear Filter 20x25x5 MERV13 2-Pack is a compatible version of the genuine Trion Air Bear Media AC Filter 20x25x5, 255649-102.


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FiltersFast Brand Trion Air Bear Filter 20x25x5 2-Pack
Our Price: $75.99
Retail: $80.00
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Whirlpool 8171434 Large Pre-Filter
(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: $43.50
Retail: $59.99
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Filtersfast Trane Perfect Fit BAYFTAH26M2A 26x21x5
(BAYFTAH26M2A)

The Filtersfast Trane Perfect Fit BAYFTAH26M2A 26x21x5 is a furnace air filter that fits several high efficiency air cleaners from Trane. This Trane air filter boasts a MERV 8 rating for the reduction of particulates in your air, including dust


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Filtersfast Trane Perfect Fit BAYFTAH26M2A 26x21x5
Our Price: $50.95
Retail: $54.95
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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: $110.95
Retail: $119.99
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FiltersFast MERV13 Replaces Honeywell 16x25x5FC100A1029
(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 MERV13 Replaces Honeywell 16x25x5FC100A1029
Our Price: $75.99
Retail: $90.00
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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 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 Trane Perfect Fit BAYFTFR17M 17.5x27x5 2pk
Our Price: $70.99
Retail: $99.99
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Lennox X7935 MERV 16 Filter Media Replacement
(X7935)

The Lennox X7935 MERV 16 Filter Media Replacement is a replacement filter media for the Lennox HCC14-23 Healthy Climate True Fit Cabinet. Measuring approximately 20x20x5, this MERV 16 furnace filter box will trap at least 95% of particles.

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Lennox X7935 MERV 16 Filter Media Replacement
Our Price: $120.80
Retail: $149.95
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TopTech DTT-FM-1625 16x25x4 MERV 11 Filter
(DTT-FM-1625)

The TopTech DTT-FM-1625 16x25x4 MERV 11 Filter removes many allergens, dust, pollen and other airborne pollutants.


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TopTech DTT-FM-1625 16x25x4 MERV 11 Filter
Our Price: $33.99
Retail: $45.99
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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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GE WB02X10700 Compatible Oven Range Hood Filter
(OEMRHP0808)

This is an Oven Hood Range Filter (OEMRHP0808) made by American Metal Filter Company which is a compatible replacement range vent hood filter for the GE WB02X10700 range filter. This oven range hood filter is a combination filter composed of carbon


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GE WB02X10700 Compatible Oven Range Hood Filter
Our Price: $9.99

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RPS 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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RPS R14ALLM Universal Cut to Fit Carbon Pre Filter-2-Pack
Our Price: $17.99
Retail: $19.99
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FiltersFast Brand Trane PerfectFit BAYFTFR24M 24.5x27x5
(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 Brand Trane PerfectFit BAYFTFR24M 24.5x27x5
Our Price: $70.95
Retail: $111.00
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Best Air SGMPR-B Replacement 2-pack For Aprilaire 201 2-Pack
(SGMPR-B)

The Space-Gard SGMPR-B Compatible MERV 11 Media Filter (2-Pack) come pre-assembled and replace AprilAire 201 air filters for use on Space-Gard Models 2200 & 2250 Air Cleaners.


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Best Air SGMPR-B Replacement 2-pack For Aprilaire 201
Our Price: $47.90

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FiltersFast Brand Honeywell FC100A1037 MERV 13 2-PACK
(FFC20255HONM13)

FiltersFast Brand Honeywell FC100A1037 MERV 13 2-PACK is a compatible media air filter with a MERV 13 energy efficiency rating. This replacement filter is also known as part number FFC20255HONM13.


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FiltersFast Brand Honeywell FC100A1037 MERV 13 2-PACK
Our Price: $83.99
Retail: $90.00
You Save 7%!

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Filters Fast - Air Filters

" Just to express my complete satisfaction with your ordering process and, of course, great pricing. When I need a replacement of refrigerator or HVAC filters, I'll be contacting you again. " - Frank, Corona, CA
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