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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 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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6-Pack Trion Air Bear Cub Filter 16x25x3 MERV 11
(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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6-Pack Trion Air Bear Cub Filter 16x25x3 MERV 11
Our Price: $91.99
Retail: $109.99
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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: $50.25
Retail: $69.99
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Air Care 1051 Tabletop Air Purifier Filter
(1051SS)

The Essick Air 1051 is a two stage air cleaner filter for your Bemis air purifier. These air purifiers remove 97% of dust, allergens and bacteria from your homes air. The tabletop air cleaner filter will keep your air purifier working at its best by


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Air Care 1051 Tabletop Air Purifier Filter
As Low As: $14.99
Retail: $23.99
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FilterFast Trane 21.5x21x5 Perfect Fit BAYFTAH21M M13
(FFC215215TRNM13)

The FilterFast Brand Trane 21.5x21x5 Perfect Fit Filter BAYFTAH21M is a compatible economical alternative for the genuine Trane 21.5x21x5 Perfect Fit Filter that comes in a 2-pack value set.

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FilterFast Trane 21.5x21x5 Perfect Fit BAYFTAH21M M13
Our Price: $111.00
Retail: $140.00
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Honeywell Enviracaire HC26A 1008 Humidifier Pad
(HC26A 1008)

The Honeywell Enviracaire Elite HC26A 1008 Humidifier Pad replaces the humidifier pad in the Honeywell HE260A,B Bypass Flow-Through Humidifier, HE360A1019, HE360B1009 Powered Flow-Through Humidifier or Aprilaire 560 and 760 humidifiers.


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Honeywell Enviracaire HC26A 1008 Humidifier Pad
As Low As: $13.49
Retail: $15.21
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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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FiltersFast Brand Honeywell 20x20x5 FC100A1011 2-Pack
(FFC20205HONM13)

The FiltersFast Brand Honeywell 20x20x5 FC100A1011 2-Pack is a compatible version of the genuine Honeywell FC100A1011 20"x20" Media AC Filter. This filter replacement is also known as part number FFC20205HONM13.


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FiltersFast Brand Honeywell 20x20x5 FC100A1011 2-Pack
Our Price: $80.99
Retail: $90.00
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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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GeneralAire 12758 MERV 11 Filter Media Replacement
(4001)

The GeneralAire 12758 MERV 11 Filter Media Replacement is a replacement air filter for the GeneralAire AC1 and AC22 model air cleaners. This replacement filter media features a MERV 11 rating and Micro Fiber construction for the reduction of airborn


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GeneralAire 12758 MERV 11 Filter Media Replacement
Our Price: $50.99
Retail: $63.99
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Honeywell HC-888 Replacement Humidifier Filter
(HC-888)

The Honeywell HC-888 Humidifier Filter Replacement is a genuine Honeywell filter. This HC888 humidifier filter reduces waterborne contaminants and minerals in your water.


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Honeywell HC-888 Replacement Humidifier Filter
Our Price: $12.99
Retail: $14.99
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FiltersFast A35WPR Replacement For Carrier P1103545
(Carrier P1103545 R)

The Carrier P1103545 Humidifier Water Panel Filter is the correct compatible replacement for: Several models of Carrier furnace humidifiers This humidifier water panel filter measures approximately 10" x 13 1/4" x 1 1/2". This Carrier water pa


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FiltersFast A35WPR Replacement For Carrier P1103545
As Low As: $11.45
Retail: $14.99
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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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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


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BioStrike Ceiling Fan Air Filter - BioStrike CFF
Our Price: $11.49
Retail: $14.99
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FiltersFast A35WPR Replacement For Honeywell HC26P
(Honeywell HC26 R)

The Honeywell HC26 Humidifier Water Panel Filter is a replacement humidifier water panel filter that fits several Honeywell furnace humidifier models. This evaporator pad measures approximately 10" x 13.25" x 1.5" and features anti-microbial furna


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FiltersFast A35WPR Replacement For Honeywell HC26P
As Low As: $11.45
Retail: $14.99
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FiltersFast A35WPR Replacement For Space-Gard #35
(Space-Gard 35 R)

The Space-Gard #35 Humidifier Water Panel Evaporator Space-Gard/Aprilaire furnace humidifier replacement unit comes with honeycomb filtration. The evaporator pad should be replaced once every 6 months or more often in hard water areas.


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FiltersFast A35WPR Replacement For Space-Gard #35
As Low As: $11.45
Retail: $14.99
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FiltersFast A35PR Replacement For Lennox WB2-17/WB2-18 Filter
(WB2-17/WB2-18 1R)

The Lennox WB2-17/WB2-18 Humidifier Metal Water Panel Filter is the correct compatible replacement for the following models of humidifiers: Lennox WB2-17 Lennox WB2-18 This metal Lennox humidifier water panel has approximate dimensions of 10"


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FiltersFast A35PR Replacement For Lennox WB2-17/WB2-18 Filter
As Low As: $7.95
Retail: $9.99
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GeneralAire 3FM1625 MERV 8 Filter Media Cartridge
(4521)

The General Air 3FM1625 MERV8 Filter Cartridge measures 16"x25"x3", and is the correct filter for General Aire MAC1200 Series Air Cleaners. This General Aire filter will dramatically reduce airborne contaminates to provide much healthier indoor air.


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GeneralAire 3FM1625 MERV 8 Filter Media Cartridge
Our Price: $21.99
Retail: $29.99
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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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Electrolux 241754001 Replacement Air Filter
As Low As: $11.95
Retail: $19.99
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FiltersFast Brand Trane 24x26x5 Perfect Fit BAYFTFR24M
(FFC24265TRNM8)

The FiltersFast Brand Trane 24x26x5 Perfect Fit BAYFTFR24M Filter is the compatible alternative of the genuine OEM 24x26x5 Trane Perfect Fit BAYFTFR24M Filter.


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FiltersFast Brand Trane 24x26x5 Perfect Fit BAYFTFR24M
Our Price: $50.95
Retail: $70.00
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GeneralAire GA10 Humidifier Vapor Pad
(7900)

The GeneralAire GA10 Humidifier Vapor Pad is a replacement vapor pad for the GeneralAire 570 Elite Flow Through Humidifer, as well as several humidifier models from Honeywell, AprilAire, and Source1. The hot air from the humidifier's furnace is firs


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GeneralAire GA10 Humidifier Vapor Pad
Our Price: $13.95
Retail: $19.99
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Honeywell FC40R1045 14x25 Return Air Grille Filter
(FC40R1045)

Honeywell FC40R1045 14x25 Return Air Grille AC Filter is a high efficiency, replacement for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 14x25x4. Genuine Honeywell Part.


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Honeywell FC40R1045 14x25 Return Air Grille Filter
Our Price: $43.00
Retail: $50.00
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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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Lennox X2660 Humidifier Water Panel Filter
(X2660)

The Lennox X2660 Humidifier Water Panel Filter is a replacement water panel filter for several Lennox Healthy Climate model humidifiers. This evaporator pad is also compatible with several humidifier models from Aprilaire. This humidifier filter rep


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Lennox X2660 Humidifier Water Panel Filter
Our Price: $14.99
Retail: $61.45
You Save 76%!

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FiltersFast A12PR Replacement For Aprilaire 12, 440
(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, 440
Our Price: $13.95
Retail: $14.99
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Filters Fast - Air Filters

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