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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


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: $111.99
Retail: $189.99
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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: $44.00
Retail: $46.00
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GeneralAire HF500 HEPA Filter for AC500
(4620)

The GeneralAire HF500 HEPA Filter for AC500 is a replacement air filter for the GeneralAire Model AC500 Air Cleaner. This HEPA filter is 99.7% efficient at reducing airborne particles down to 0.30 microns. This HEPA air filter, also known as the RHF


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GeneralAire HF500 HEPA Filter for AC500
Our Price: $96.62
Retail: $149.99
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Honeywell FC200E1029 MERV 13 Air Filter - 16x25x5
(FC200E1029)

The Honeywell FC200E1029 MERV 13 Air Filter - 16x25x5 is a replacement air filter for the Honeywell 16x25 F100 and F200 media air cleaner models. This Honeywell air filter features a MERV 13 rating that helps it remove over 97% of airborne contamina


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Honeywell FC200E1029 MERV 13 Air Filter - 16x25x5
Our Price: $41.39
Retail: $44.73
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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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Lennox X0584 MERV 11 Pleated Media Filter
(X0584)

The Lennox X0584 MERV 10 Pleated Media Filter is a pleated air filter that replaces the filter media in the Lennox BMAC-14CE box media air cleaner and also fits inside Lennox the EAC012 and EAC0-14 model air cleaner cabinets in place of its electron


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Lennox X0584 MERV 11 Pleated Media Filter
As Low As: $33.95
Retail: $81.70
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Honeywell 203371 Air Cleaner Pre-Filter 2-PACK
(203371)

The Honeywell 203371 is the correct replacement for the following air cleaners: Honeywell F300E1019 Honeywell F58A1001 Honeywell F58E1002 Honeywell F50F1073 Honeywell F58F1018 Honeywell F50E1158 Honeywell F50E1174 Honeywell F50E1281 Honey


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Honeywell 203371 Air Cleaner Pre-Filter 2-PACK
Our Price: $57.59
Retail: $59.99
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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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GE WB02X10956 Compatible Microwave Filter
(OEMRCP0303)

This Microwave Filter Replacement (OEMRCP0303) made by American Metal Filter Company is a compatible replacement microwave filter primarily for the GE WB02X10956 filter. It is a recirculating charcoal carbon microwave filter for use with non-ducted


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GE WB02X10956 Compatible Microwave Filter
Our Price: $8.99
Retail: $9.99
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Honeywell 50000293-002 Post Filter for F300 2-Pack 2-Pack
(50000293-002)

The Honeywell 50000293-002 is the correct replacement for the following air cleaners: Honeywell F300 Series Honeywell F50F Series Honeywell F58F Series The Honeywell 50000293-002 Post Filter for F50F & F300 measures 16 inches by 12 1/2 inche


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Honeywell 50000293-002 Post Filter for F300 2-Pack
Our Price: $44.07

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FiltersFast Brand Honeywell 20x20x5 FC100A1011 2-Pack
(FFC20205HONM8)

FiltersFast Brand Honeywell 20x20x5 FC100A1011 2-Pack Air Filter is an economical compatible version of the OEM Honeywell FC100A1011 20"x20" Media AC Filter. To save money, this air filter replacement comes in a 2pk value set.


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FiltersFast Brand Honeywell 20x20x5 FC100A1011 2-Pack
Our Price: $44.90
Retail: $50.00
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TopTech DTT-FM-2020 20x20x4 MERV 11 Filter
(DTT-FM-2020)

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


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TopTech DTT-FM-2020 20x20x4 MERV 11 Filter
Our Price: $35.25
Retail: $39.99
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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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BioStrike Ceiling Fan Air Filter - BioStrike CFF
(BioStrike CFF)

The BioStrike Ceiling Fan Air Filter (BioStrike CFF) can be used with most ceiling fans to reduce dust, dirt, hair, pollen, pet dander, mold, and other airborne allergens. It attaches to the ceiling fan blade(s) to provide air filtration every time


Special Order. Ships in 30 days.
BioStrike Ceiling Fan Air Filter - BioStrike CFF
Our Price: $11.49
Retail: $14.99
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Honeywell FC40R1144 Return Air Filter - 20x24
(FC40R1144)

The Honeywell FC40R1144 Return Air Filter - 20x24 is a replacement air filter that mounts in most return filter grilles. The Honeywell return air grille filter features four inches of depth, which provides a higher efficiency than standard one inch


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Honeywell FC40R1144 Return Air Filter - 20x24
Our Price: $34.95
Retail: $39.99
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Frigidaire 241504902 Refrigerator Air Filter
(241504902)

The Frigidaire 241504902 is a refrigerator air filtration cartridge that is the replacement for Frigidaire EAF1CB. The Frigidaire 241504902 Refrigerator Air Filter fits Frigidaire and Electrolux Pure Advantage


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Frigidaire 241504902 Refrigerator Air Filter
Our Price: $12.99
Retail: $14.99
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Whirlpool 1183051, 1187018 HEPA Filter
(1183051)

The Whirlpool Whispure 1183051 HEPA Filter fits Whirlpool Model AP250. The 1183051 helps effectively reduce airborne irritants such as smoke, dust, pet dander, pollen, mold spores, and fabric fibers.


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Whirlpool 1183051, 1187018 HEPA Filter
Our Price: $70.99
Retail: $79.99
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FiltersFast Brand 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.


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FiltersFast Brand Trion 16x25x3 Air Bear MERV13 3-Pack
Our Price: $84.00
Retail: $100.00
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Honeywell Trane Perfect Fit 23.5x21x5 BAYFTAH23M 3-Pk
(HTRN2321T1)

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

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In stock! Ships in 1 business day.
Honeywell Trane Perfect Fit 23.5x21x5 BAYFTAH23M 3-Pk
Our Price: $149.00
Retail: $160.00
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RPS R14ALLM Replacement For Kenmore 83156 Carbon PreFilter 2-Pack
(KENMORE 83156 1 R)

The Kenmore 83156 Carbon PreFilter 2 Pack works with your Kenmore 83250 and 85250 model Air Purifier. These replacement carbon prefilters measure approximately 14.5" x 11" inches and will protect your HEPA filter while removing harmful particles and


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RPS R14ALLM Replacement For Kenmore 83156 Carbon PreFilter 2-Pack
Our Price: $17.99
Retail: $19.99
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FiltersFast Brand Trane 24.5x27x5 BAYFTFR24M2A 2 Pack
(FFC245275TRN)

The FiltersFast Brand Trane 24.5x27x5 BAYFTFR24M2A 2 Pack compatible air filter captures airborne pollutants that can cause a negative impact on respiratory health


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FiltersFast Brand Trane 24.5x27x5 BAYFTFR24M2A 2 Pack
Our Price: $55.99
Retail: $59.95
You Save 7%!

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Lennox X8311 MERV 11 Expandable Filter Replacement
(X8311)

The Lennox X8311 is the correct filter for the following air cleaner: Lennox Healthy Climate HCXF14 Air Filtration System


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Lennox X8311 MERV 11 Expandable Filter Replacement
Our Price: $34.39
Retail: $38.71
You Save 11%!

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Lennox X5424 MERV 16 Pleated Furnace Filter Media
(X5424)

This Lennox X5424 MERV 16 Pleated Furnace Filter Media needs to be replaced every 12 months. The Lennox MERV 16 Filter is a genuine Lennox Healthy Climate boxed media air cleaner.


Special Order. Ships in 14 days.
Lennox X5424 MERV 16 Pleated Furnace Filter Media
Our Price: $100.95
Retail: $122.45
You Save 18%!

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Electrolux 241754001 Replacement Air Filter
(241754001)

The Electrolux 241754001 Replacement Air Filter is a replacement filter for Electrolux and Frigidaire PureAdvantage refrigerator models. The Frigidaire air filter, also known as the Frigidaire EAFCBF, reduces common odors from your refrigerator and

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In stock! Ships in 1 business day.
Electrolux 241754001 Replacement Air Filter
As Low As: $11.95
Retail: $19.99
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Whirlpool 8171433 Air Pre-Filter (Small)
(8171433)

The Whirlpool 8171433 Activated Carbon Air Pre-Filter fits Whirlpool Model AP150 and AP250. This pre-filter pre-cleans the air, reduces odors and filtering out larger particles therefore extending the life of your HEPA filter. Four pack.


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Whirlpool 8171433 Air Pre-Filter (Small)
Our Price: $26.99
Retail: $30.00
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