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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:


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.


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Trion Air Bear Media AC Filter 20x20x5 4-Pack
Our Price: $79.00
Retail: $100.00
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Honeywell 50000293-001 Post Air Filter 2-Pack 2-Pack
(50000293-001)

The Honeywell 50000293-001 is a post filter that fits the following electronic air cleaner models: Honeywell F50F Honeywell F300E The Honeywell 50000293-001 Post Air Filter - 16x10 improves the performance and efficiency of the air cleaner.


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Honeywell 50000293-001 Post Air Filter 2-Pack
Our Price: $43.90

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IcePure ICP-AF003 Replacement For Electrolux EAF1CB
(ICP-AF003)

The IcePure ICP-AF003 is the compatible replacement for the Electrolux EAF1CB refrigerator air filter.


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IcePure ICP-AF003 Replacement For Electrolux EAF1CB
Our Price: $6.99
Retail: $9.99
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Carrier 324897-761 Humidifier Water Filter Pad
(Carrier 324897-761)

The Carrier 324897-761 Humidifier Water Filter Pad is a replacement humidifier water filter pad for several models of humidifiers from Carrier, Bryant, Totaline, and Day and Night. This Carrier wick filter utilizes honeycomb filtration to trap miner


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Carrier 324897-761 Humidifier Water Filter Pad
Our Price: $24.95
Retail: $29.95
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Lennox X4138 HEPA 40/60 Carbon PreFilter
(X4138)

This Lennox X4138 HEPA 40/60 Carbon PreFilter is a part of the Lennox “Healthy Climate” line of indoor air quality products. This Lennox HEPA 60 filter has an estimated life of 6 months.


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Lennox X4138 HEPA 40/60 Carbon PreFilter
Our Price: $32.99
Retail: $38.51
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FiltersFast A35WPR Replacement For Lennox WB2-17/WB2-18
(WB2-17/WB2-18 R)

The Lennox WB2-17/WB2-18 Humidifier Water Panel Filter will help keep your humidifier running at its best. This humidifier panel measure 10" x 13 1/4" x 1.5" inches and the honeycomb design will trap mineral pollutants keeping them out of your humid


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FiltersFast A35WPR Replacement For Lennox WB2-17/WB2-18
As Low As: $11.45
Retail: $14.99
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FiltersFast Brand 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.

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FiltersFast Brand Trion 16x25x5 Air Bear MERV13 2-Pack
Our Price: $94.00
Retail: $100.00
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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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Trion 259112-101 Air Bear Cub Filter 16x25x3 MERV 11 - 6-Pack
(259112-101 6Pack)

The Trion Air Bear Cub Filter 16x25x3 MERV 11 6-Pack can be used Trion AirBear Air Cleaners and all air cleaners that need 16"x25"x3" air filters. These Trion filters are an economical upgrade from simple poly-pleated or fiberglass filters.

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Trion 259112-101 Air Bear Cub Filter 16x25x3 MERV 11 - 6-Pack
Our Price: $91.99
Retail: $109.99
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FiltersFast Brand Bryant-Carrier FILXXCAR0016 MERV11 2pack
(FILXXCAR0016)

The FiltersFast Brand Bryant-Carrier FILXXCAR0016 MERV11 2pack replacement combines the strength of a continuous hydrophobic polyolefin fibers media and increased surface area that results in a reduction of airborne pollutants.


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FiltersFast Brand Bryant-Carrier FILXXCAR0016 MERV11 2pack
Our Price: $44.95
Retail: $89.99
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Aprilaire 1413 Air Filter Performance Upgrade Kit
(Aprilaire 1413)

The Aprilaire 1413 is an Aprilaire Upgrade Kit that allows owners of Spacegard 2400 and Aprilaire 2400 air cleaners to use the MERV 13 Aprilaire 413 Filter instead of their MERV 10 Aprilaire 401 Filter. This improves air cleaning performance by 65 p

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Aprilaire 1413 Air Filter Performance Upgrade Kit
Our Price: $55.95
Retail: $64.99
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FiltersFast Brand White Rodgers 20x26x5 F825-0549 2Pack
(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.


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FiltersFast Brand White Rodgers 20x26x5 F825-0549 2Pack
Our Price: $41.99
Retail: $50.00
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FiltersFast A35PR Replacement for SPACE-GARD 35
(SPACE-GARD 35 1R)

The SPACE-GARD 35 Humidifier Metal Water Panel Filter is the correct compatible replacement for the following models of Space-Gard/Aprilaire furnace humidifiers: 350 360 560 560A 568 600 700 760 760A 768 This Space-Gard humidifier wat


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FiltersFast A35PR Replacement for SPACE-GARD 35
As Low As: $7.95
Retail: $9.99
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Hunter 30901 Carbon Purifier Pre-Filter
(30901)

The Hunter 30901 Carbon Pre-Filter fits all Hunter QuietFlo and HEPAtech purifiers. The 30901 Carbon Pre-Filter's activated charcoal absorbs odors from pets, smoking, cooking and more.


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Hunter 30901 Carbon Purifier Pre-Filter
As Low As: $20.50
Retail: $27.95
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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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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: $43.50
Retail: $55.00
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FiltersFast A12PR Replacement for Aprilaire 12
(A12PR)

The AprilAir 440 Humidifier Water Panel Evaporator Filter is a heavy-duty metal water panel pad for several Aprilaire, Chippewa and Walton humidifier models, and is also referred to as part number A12PR.


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FiltersFast A12PR Replacement for Aprilaire 12
As Low As: $10.95
Retail: $14.99
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FiltersFast Trane 21x26x5 Perfect Fit BAYFTAH26M M13 x2
(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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FiltersFast Trane 21x26x5 Perfect Fit BAYFTAH26M M13 x2
Our Price: $111.00
Retail: $140.00
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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
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Carrier Bryant 318518-762 Humidifier Filter Replacement
(318518-762)

The Carrier 318518-762 Humidifier Filter Replacement is a replacement humidifier filter for several models of humidifiers from Bryant/Carrier. This whole house humidifier filter is made from high quality material in order to provide you with higher


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Carrier Bryant 318518-762 Humidifier Filter Replacement
Our Price: $39.99
Retail: $49.99
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IcePure Replacement for GE Cafe Series Odor Filter
(AF005)

The IcePure AF005 Replacement for the GE Cafe Series Odor Filter uses a powerful charcoal filter to help reduce odor inside your refrigerator.

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IcePure Replacement for GE Cafe Series Odor Filter
Our Price: $17.75
Retail: $23.35
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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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Bionaire 611D Air Cleaner Replacement Filter
(611D R)

The Bionaire 611D Air Cleaner Replacement Filter fits the following models of air cleaners: Bionaire LP1000 Bionaire LP1500H Bionaire 83130 This Bionaire 611D replacement filter is a dual air filter cartridge, with a main filter as well as a


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Bionaire 611D Air Cleaner Replacement Filter
Our Price: $11.99
Retail: $14.99
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Lennox Y6606 PCO3-14-16 Air Filtration Filter
(DLXY6606)

The Lennox Y6606 PCO3-14-16 Healthy Climate PureAir Air Purification System features a Precision Pleat MERV 16 filter that traps particles down to an amazing 0.01 micron.

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Lennox Y6606 PCO3-14-16 Air Filtration Filter
Our Price: $86.37
Retail: $93.99
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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: $51.99
Retail: $60.00
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