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Find Replacement Air Filters Fast & Easy!

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 FC40R1110 Air Filter 14X20x3 2-Pack 2-Pack
(FC40R1110)

The Honeywell FC40R1110 is a return air grille filter that fits the following: Any return air grille that uses a 14 inch x 20 inch x 4 inch filter The Honeywell FC40R1110 Furnace Air Filter - 14X20 has a Minimum Efficiency Reporting Value (MER


Special Order. Ships in 7 days.
Honeywell FC40R1110 Air Filter 14X20x3 2-Pack
Our Price: $243.80

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Honeywell FC40R1144 Return Air Filter - 20x24 5-Pack
(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


In stock! Ships in 1 business day.
Honeywell FC40R1144 Return Air Filter - 20x24
Our Price: $164.75

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Honeywell FC35A1001 Replacement Air Filter 16x25x5
(FC35A1001)

The Honeywell FC35A1001 is the correct replacement filter for the following air cleaners: Honeywell 16x25 F100 Media Air Cleaners Honeywell 16x25 F200 Media Air Cleaners The Honeywell FC35A1001 Replacement Air Filter 16x25x5 is a genuine Hone


In stock! Ships in 1 business day.
Honeywell FC35A1001 Replacement Air Filter 16x25x5
Our Price: $35.00
Retail: $37.00
You Save 5%!

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Lennox 92X17 HEPA Filter Cartridge Replacement
(92X17)

This Lennox 92X17 HEPA Filter Cartridge Replacement offers a 3-stage filtration process is used to create a very effective filtration system. The Lennox Hepa Air Filter offers possible air-filtration performance.

Free shipping within the continental United States!

Special Order. Ships in 9 days.
Lennox 92X17 HEPA Filter Cartridge Replacement
Our Price: $126.25
Retail: $198.40
You Save 36%!

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Lennox 69H98 Air Cleaner Carbon Filter
(69H98)

The Lennox 69H98 Air Cleaner Carbon Filter is a replacement air filter for the Lennox EAC12-14 and EAC-14 series air cleaners. This carbon filter replaces part number 69H9801 and is a genuine Lennox part that is constructed from high quality materia


Special Order. Ships in 15 days.
Lennox 69H98 Air Cleaner Carbon Filter
Our Price: $74.99
Retail: $79.99
You Save 6%!

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Trane Perfect Fit Filter 21x27x5 BAYFTFR21M 3-Pack
(HTRN2127T1)

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

Free shipping within the continental United States!

Special Order. Ships in 4 days.
Trane Perfect Fit Filter 21x27x5 BAYFTFR21M
Our Price: $148.50

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Hunter 30920 HEPAtech Air Purifier Filter
(30920)

The Hunter 30920 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


Discontinued Product Read Description.
Hunter 30920 HEPAtech Air Purifier Filter
As Low As: $18.49
Retail: $29.95
You Save 38%!

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Trion Duct Mount HE Plus 2000, 455600-001
(455600-001)

The Trion Duct Mount HE Plus 2000, 455600-001 is an Electronic Whole House Air Purification System. The HE Plus 2000 includes an elctronic air flow sensor. This is a genuine Trion product. Learn how the HE Plus 2000 can help you...

Free shipping within the continental United States!

Special Order. Ships in 14 days.
Trion Duct Mount HE Plus 2000, 455600-001
Our Price: $392.99
Retail: $420.00
You Save 6%!

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Lennox X8304 MERV 10 Expandable Filter Kit
(X8304)

This Lennox Expandable Filter is a genuine Lennox part. The Lennox Healthy Climate Filter is a viable replacement for several Air Cleaner Models.

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Special Order. Ships in 8 days.
Lennox X8304 MERV 10 Expandable Filter Kit
Our Price: $99.99
Retail: $104.99
You Save 5%!

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Lennox X6661 Healthy Climate Filter Cabinet
(X6661)

The Lennox X6661 Healthy Climate Filter Cabinet is a replacement filter cabinet for Lennox Healthy Climate air cleaner models HC10 and HC 16. This air filter cabinet measures approximately 20x25x5 and is also known as the HCC20-28.

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Special Order. Ships in 10 days.
Lennox X6661 Healthy Climate Filter Cabinet
Our Price: $99.75
Retail: $120.95
You Save 18%!

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Lennox X8303 MERV 10 Expandable Filter Kit
(X8303)

The Lennox X8303 MERV 10 Expandable Filter Kit is the correct replacement for several models of the following brands of air cleaners: Bryant & Carrier Honeywell Lennox Trion This Lennox Healthy Climate filter kit contains one filter and


Special Order. Ships in 4 days.
Lennox X8303 MERV 10 Expandable Filter Kit
Our Price: $47.50
Retail: $49.99
You Save 5%!

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Honeywell F100F2028 16x20 Media Air Cleaner
(F100F2028)

The Honeywell F100F2028 16x20 Media Air Cleaner mounts in the return air duct in any position.


In Stock! Ships in 10 to 11 business days.
Honeywell F100F2028 16x20 Media Air Cleaner
Our Price: $87.99
Retail: $89.99
You Save 2%!

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Lennox 91X25 MERV 8 Pleated Air Filters 4-Pack 4-Pack
(91X25)

The Lennox 91X25 MERV 8 Pleated Air Filters 4-Pack is a replacement set of pleated air filters that arrives in a 4 pack. These Healthy Climate furnace filters boast a MERV 8 rating, which can reduce mold spores, dust, and tiny particles from your ai


Special Order. Ships in 11 days.
Lennox 91X25 MERV 8 Pleated Air Filters 4-Pack
Our Price: $39.93

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Sunbeam 6618 Carbon PreFilter 2-Pack
(SUNBEAM 6618 1 R)

The Sunbeam 6618 Carbon prefilter 2-pack works with your Sunbeam 2590 air purifier. This convenient two pack will keep noxious gases and large particulates out of your homes air. This will increase the life of your air purifiers HEPA filter.


In stock! Ships in 1 business day.
Sunbeam 6618 Carbon PreFilter 2-Pack
Our Price: $17.99
Retail: $19.99
You Save 10%!

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Honeywell 32001 Carbon PreFilter 2-Pack
(Honeywell 32001 1 R)

The Honeywell 32001 Carbon PreFilter 2-Pack is a high quality carbon pre-filter that removes household odors and other impurities. This Honeywell 32001 Carbon PreFilter 2-Pack should be replaced every three months for optimum performance.


In stock! Ships in 1 business day.
Honeywell 32001 Carbon PreFilter 2-Pack
Our Price: $17.99
Retail: $19.99
You Save 10%!

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Trion Air Bear Supreme 1400 Comp Air Filters 2-Pk 2-Pack
(AB-51625-8)

The Trion AB-51625-8 replaces the following Trion Air Bear air filters: Air Bear 1400 - 255649-103 Air Bear 1400 - 229990-103 Air Bear 2000 - 255649-102


Special Order. Ships in 26 days.
Trion Air Bear Supreme 1400 Comp Air Filters 2-Pk
Our Price: $59.90

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Honeywell FC100A1052 12.5" x 20" Media Air Filter
(FC100A1052)

The Honeywell FC100A1052 12.5" x 20" Replacement Air Filter boasts an upgraded MERV 11 rating (based on ASHRAE Standard 52.2) and is used with the Honeywell Enviracaire F27F1032 Air Cleaner.


Out of stock
Honeywell FC100A1052 12.5" x 20" Media Air Filter
As Low As: $27.00
Retail: $49.02
You Save 45%!

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Honeywell F300A1625 16x25 Electronic Air Purifier
(F300A1625)

The Honeywell F300A1625 16x25 Electronic Air Purifier optimizes efficiency with airflow that captures up to 98% of airborne particles that passes through it.

Free shipping within the continental United States!

In Stock! Ships in 10 to 11 business days.
Honeywell F300A1625 16x25 Electronic Air Purifier
Our Price: $446.45
Retail: $499.99
You Save 11%!

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Carrier 356066-1202 Charcoal Filter for EACBAXCC00 2-Pack
(356066-1202)

The Carrier 356066-1202 Charcoal Filter is a genuine OEM factory replacement charcoal carbon filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0014 Electronic Air Cleaner.


Special Order. Ships in 21 days.
Carrier 356066-1202 Charcoal Filter for EACBAXCC00
Our Price: $123.24

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Trion Duct Mount HE Plus 1400, 455601-001C 16"x25"
(455601-001C)

The Trion Duct Mount HE Plus 1400, 455601-001C is an Electronic Whole House Air Purification System. The HE Plus 1400 includes an elctronic air flow sensor. Genuine Trion Fedders product. Learn how the HE Plus 1400 can help you live a healthy life..

Free shipping within the continental United States!

In Stock! Ships in 10 to 11 business days.
Trion Duct Mount HE Plus 1400, 455601-001C 16"x25"
Our Price: $369.95
Retail: $440.00
You Save 16%!

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Bionaire A1000C Carbon PreFilter 2-Pack
(Bionaire A1000C 1 R)

The Bionaire A1000C Carbon PreFilter 2-Pack is the correct replacement for the following models of Bionaire air cleaners: SH1240 SH1260 SH1840 SH1860 This carbon prefilter's dimensions are 11.5" x 11.5" x 0.2". This Bionaire prefilter traps


In stock! Ships in 1 business day.
Bionaire A1000C Carbon PreFilter 2-Pack
Our Price: $17.99
Retail: $19.99
You Save 10%!

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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: $17.99
Retail: $19.99
You Save 10%!

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Kenmore 83176 Carbon PreFilter 2-Pack
(KENMORE 83176 1 R)

The Kenmore 83176 Carbon PreFilter comes in this cost-cutting 2-pack package. The Kenmore Carbon PreFilter should be replaced every 2 to 3 months for optimum performance.


In stock! Ships in 1 business day.
Kenmore 83176 Carbon PreFilter 2-Pack
Our Price: $17.99
Retail: $19.99
You Save 10%!

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Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1 4-Pack 4-Pack
(BAYFTAH26P4A)

The Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1 is a furnace air filter that fits several electronic and media air cleaner models from Trane. This Trane air filter boasts a MERV 8 rating for the reduction of particulates in your air, including


Special Order. Ships in 25 days.
Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1 4-Pack
Our Price: $207.20

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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 22 days.
Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5
Our Price: $99.46

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Filters Fast - Air Filters

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