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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


General Aire 20x25 MERV11 Filter Media GA100A37
(4356)

The GeneralAire GA100A37 MERV10 Filter Media measures 20"x25x4" approx., and is the correct replacement filter for Source 1 S1 MAC 10202505, Trion Air Bear Supreme 2000, Skuttle DBO-0025-020, Ultravation 90-007 & Honeywell FC100A1037 Air Cleaners.


In stock! Ships in 1 business day.
General Aire 20x25 MERV11 Filter Media GA100A37
Our Price: $30.99
Retail: $39.99
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FiltersFast Trane 21x27x5 Perfect Fit BAYFTFR21M M13 x2
(FFC21275TRNM13)

FiltersFast Brand Trane 21x27x5 Perfect Fit BAYFTFR21M M13 x2 is an economical compatible version of the genuine Trane 21x27x5 Perfect Fit Air Filter.

Free shipping within the continental United States!

In Stock! Ships in 1 to 2 business days.
FiltersFast Trane 21x27x5 Perfect Fit BAYFTFR21M M13 x2
Our Price: $110.00
Retail: $140.00
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Honeywell Trane BAYFTFR17M Perfect Fit Filter 17.5x27x5 3-Pack
(HTRN1727T1)

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


In Stock! Ships in 7 to 8 business days.
Honeywell Trane BAYFTFR17M Perfect Fit Filter 17.5x27x5
Our Price: $141.00

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Hunter 30936 QuietFlo HEPA Purifier Filter
(30936)

The Hunter 30936 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


Special Order. Ships in 5 days.
Hunter 30936 QuietFlo HEPA Purifier Filter
Our Price: $57.95
Retail: $299.97
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Filters Fast 16x25x5 MERV 8 Air Filter 2-Pack
(FFC16255HON OKGM)

The Filters Fast 16x25x5 MERV 8 Air Filter 3-Pack is a replacement pack of compatible air filters that is an upgrade the Honeywell FC100A1029 and Carrier FILCCCAR0016 air filters. This 3 pack of 16" x 25" x 5" filters features a MERV 8 rating and


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Filters Fast 16x25x5 MERV 8 Air Filter 2-Pack
Our Price: $52.95
Retail: $94.99
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Trion Air Bear Right Angle Media Air Cleaner
(447380-010)

The Trion Air Bear Right Angle Media Air Cleaner, part number 447380-002, provides a clean and controlled indoor air environment in your home. Ideal for installations that normally require a 90 degree duct adaptor.

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In Stock! Ships in 41 to 42 business days.
Trion Air Bear Right Angle Media Air Cleaner
Our Price: $122.83
Retail: $199.99
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Honeywell FC40R1136 18x24 Return Grille Air Filter 5-Pack
(FC40R1136)

The Honeywell FC40R1136 is the correct replacement for the following air return grille filters: Most air return filter grilles The Honeywell FC40R1136 18x24 Return Grille Air Filter measures 18 inches by 24 inches. This Honeywell FC40R1136 is


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Honeywell FC40R1136 18x24 Return Grille Air Filter
Our Price: $160.90

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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: $8.99
Retail: $9.99
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Genuine Hoover Type S Vacuum Bags Allergen - 3 Pk
(4010100S)

The Genuine Hoover Type S Vacuum Bags Allergen 3-Pack are replacement vacuum cleaner bags that fit all Hoover vacuum cleaners that use Type S bags, including the Futura, PowerMAX, WindTunnel, and several models of TurboPower. These replacement bags


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Genuine Hoover Type S Vacuum Bags Allergen - 3 Pk
Our Price: $5.99
Retail: $9.99
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Hunter 30917 HEPAtech Purifier Filter
(30917)

The Hunter 30917 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


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Hunter 30917 HEPAtech Purifier Filter
Our Price: $22.99
Retail: $24.95
You Save 8%!

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Trion Air Bear Supreme 2000 Media Air Cleaner
(455602-025)

The Trion Air Bear Supreme 2000 Media Air Cleaner, part number 455602-019, provides a clean and controlled indoor air environment in your home by removing dirt, dust, pollen and other microscopic particles from your air.


In Stock! Ships in 26 to 27 business days.
Trion Air Bear Supreme 2000 Media Air Cleaner
Our Price: $99.95
Retail: $120.74
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FiltersFast MERV 8 Pleated 1" Panel Filter 6-Pack 6-Pack
(FFM8PLEAT1)

The Filters Fast MERV 8 Pleated 1" Panel Filter 6-Pack is a set of replacement air filters for ideal use as service pleats or prefilters in commercial HVAC systems or industrial air cleaners. These pleated media filters arrive in a 6 pack and are ef


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FiltersFast MERV 8 Pleated 1" Panel Filter 6-Pack
Our Price: $233.70

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Skuttle Air Cleaner Filter 16x20x5 000-0448-004 3-Pack
(000-0448-004)

The Skuttle 000-0448-004 Air Cleaner Filter can be used on air cleaners requiring 16"x20"x5" filters. The Skuttle 448-4 dramatically removes airborne particulates such as pollen, mold spores, dust, dust mites and allergens from your indoor air.


Special Order. Ships in 15 days.
Skuttle Air Cleaner Filter 16x20x5 000-0448-004
Our Price: $93.00

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Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5 2-Pack
(BAYFTFR24M2A)

The Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5 fits the TFM245B0FR0 Perfect Fit High Efficiency Air Cleaner and easily slides in for quick use. This Trane Perfect Fit filter measures approximately 24.5" x 27" x 5" and has a MERV 8 rating for


Special Order. Ships in 13 days.
Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5
Our Price: $101.46

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Trion Air Bear Supreme 20x20 Media Air Cleaner
(455602-225)

The Trion Air Bear Supreme 20x20 Media Air Cleaner, part number 455604-019, provides a clean and controlled indoor air environment in your home by removing dirt, dust, pollen and other microscopic particles such as grease and soot from your air.


In Stock! Ships in 29 to 30 business days.
Trion Air Bear Supreme 20x20 Media Air Cleaner
Our Price: $110.99
Retail: $120.74
You Save 8%!

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Honeywell HRF-B2 Carbon PreFilter 2-Pack
(HRF-B2 1 R)

The Honeywell HRF-B2 Carbon PreFilter 2-Pack is the correct replacement for the following models of Honeywell air purifiers: HHT-090 HHT-011 HHT-145 HPA-150 HPA-050 This carbon prefilter removes mold spores, pet dander, tobacco smoke, and


In stock! Ships in 1 business day.
Honeywell HRF-B2 Carbon PreFilter 2-Pack
Our Price: $16.99
Retail: $19.99
You Save 15%!

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FiltersFast ROHAPF60M Replacement For Bionaire HAPF60 R Filter 2-Pack
(Bionaire HAPF60 R)

The Bionaire HAPF60 R Air Purifier Carbon Filter is a replacement air purifier filter that fits several models of Holmes air cleaners. This universal carbon pre-filter measures approximately 6.6" x 1.8" x 11.2" and helps deodorize the air through th


In Stock! Ships in 14 to 15 business days.
FiltersFast ROHAPF60M Replacement For Bionaire HAPF60 R Filter 2-Pack
Our Price: $11.00
Retail: $12.99
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Hoover Air Purifier HEPA & Pre-filter AH60010
(AH60010)

The Hoover AH60010 is the correct replacement for the following models of air purifiers: Hoover WH10100 Hoover WH10200 The Hoover Air Purifier HEPA & Pre-filter AH60010 contains a rinsable pre-filter and a HEPA media filter. The pre-filter of


In Stock! Ships in 8 to 9 business days.
Hoover Air Purifier HEPA & Pre-filter AH60010
Our Price: $18.70
Retail: $19.99
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Bionaire 611D Replacement For Bionaire 611DCS Compatible Dual Air Filter
(611DCS)

The Bionaire 611DCS dual air filter cartridge is for use with your Bionaire model air purifier. This dual air purifier filter inclueds both a main and carbon filter for better air filtration. The carbon and air filter work together to remove harmful


In stock! Ships in 1 business day.
Bionaire 611D Replacement For Bionaire 611DCS Compatible Dual Air Filter
Our Price: $10.99
Retail: $14.99
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RPS R14ALLM Replacement For Kenmore 83125 Carbon PreFilter 2-Pack
(KENMORE 83125 1 R)

The Kenmore 83125 Carbon PreFilter 2-Pack is cut-to-fit activated. The Kenmore Carbon PreFilter should be replaced every 2 to 3 months for optimum performance.


In stock! Ships in 1 business day.
RPS R14ALLM Replacement For Kenmore 83125 Carbon PreFilter 2-Pack
Our Price: $16.99
Retail: $19.99
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Filters Fast 5" Trane BAYFTFR21M Compatible 2-Pack
(FFC21275TRN OKGM)

The Filters Fast 5" Trane Perfect Fit BAYFTFR21M Compatible FFC21275TRN OKGM fits the following: any air cleaner that calls for a 21" x 27" x 5" filter This Filters Fast air filter also replaces the Trane Perfect Fit BAYFTFR21M filter. This Tr


In Stock! Ships in 1 to 2 business days.
Filters Fast 5" Trane BAYFTFR21M Compatible 2-Pack
Our Price: $99.00
Retail: $104.99
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FiltersFast Brand White Rodgers F825-0549 MERV13 2Pack
(FFC20265WRM13)

The FiltersFast Brand White Rodgers F825-0549 MERV13 2Pack is a compatible alternative that's a part of the White Rodgers F825 Series residential air cleaner replacement filters.


In Stock! Ships in 1 to 2 business days.
FiltersFast Brand White Rodgers F825-0549 MERV13 2Pack
Our Price: $80.00
Retail: $100.00
You Save 20%!

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Carrier 356066-0602 Pre Filter for EACBAXCC0014
(356066-0602)

The Carrier 356066-0602 Pre Filter is a genuine OEM factory replacement pre filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0014 Electronic Air Cleaner.


Special Order. Ships in 15 days.
Carrier 356066-0602 Pre Filter for EACBAXCC0014
Our Price: $33.95
Retail: $39.95
You Save 15%!

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Carrier 356066-0601 EACBAXCC0020 PreFilter 2pk 2-Pack
(356066-0601)

The Carrier 356066-0601 Pre Filter is a genuine OEM factory replacement pre filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0020 Electronic Air Cleaner.


Special Order. Ships in 16 days.
Carrier 356066-0601 EACBAXCC0020 PreFilter 2pk
Our Price: $68.02

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Trion Trim T / Trim TX Air Cleaner Prefilter
(123324-008)

The Trion Trim T / Trim TX Air Cleaner Prefilter is an aluminum prefilter for electronic air cleaners. Trion Trim T electronic air cleaners are whole house air cleaners built for air duct system. Electricity is utilized to attract and capture dust,


In Stock! Ships in 15 to 16 business days.
Trion Trim T / Trim TX Air Cleaner Prefilter
Our Price: $21.99
Retail: $29.99
You Save 27%!

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Filters Fast - Air Filters

" Have always been pleased with the speed and quality of your service. Recommend your company to anyone needing filters! " - Charles, Deland, FL
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