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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.


Air Filters full product list:


Honeywell FC40R1052 16x20 Return Air Grille Filter 5-Pack
(FC40R1052)

The Honeywell FC40R1052 is a high-efficiency, replacement AC filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 16x20x4. Genuine Honeywell Part.


In Stock! Ships in 1 to 2 business days.
Honeywell FC40R1052 16x20 Return Air Grille Filter
Our Price: $259.95

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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..

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In Stock! Ships in 3 to 4 business days.
Trion Duct Mount HE Plus 1400, 455601-001C 16"x25"
Our Price: $371.95
Retail: $440.00
You Save 15%!

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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.

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In Stock! Ships in 13 to 14 business days.
Trion Air Bear Supreme 20x20 Media Air Cleaner
Our Price: $111.99
Retail: $120.74
You Save 7%!

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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 10 days.
Carrier 356066-1202 Charcoal Filter for EACBAXCC00
Our Price: $127.24

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AMP-G8-1056 Replacement for Goodman G13MU2025 3-Pack
(G8-1056)

The Goodman G13MU2025 Air Filter Replacements - 3 Pack has more surface area, which means more collection area, lower static pressure and longer filter life.

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In Stock! Ships in 7 to 8 business days.
AMP-G8-1056 Replacement for Goodman G13MU2025 3-Pack
Our Price: $174.00
Retail: $199.99
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FiltersFast HAPF30 R Replacement for Holmes HAPF30AT-U4
(HAPF30)

The Holmes HAPF30 Replacement HEPA filter fits Holmes Air Purifier Models HAP240, HAP242, HAP243, HAP2400, HAP2404, HAP260, HAP2604, HAP412, HAP413, HAP422, HAP433 and Bionaire BAP242, BAP422, BAP815, BAP825, and BAP826.


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FiltersFast HAPF30 R Replacement for Holmes HAPF30AT-U4
Our Price: $16.24
Retail: $29.99
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FiltersFast Brand White Rodgers 16x26x5 F825-0548 2Pack
(FFC16265WRMM13)

The FiltersFast Brand White Rodgers 16x26x5 F825-0548 2Pack is a compatible economical alternative to the genuine 16x26x5 air furnace filter.


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FiltersFast Brand White Rodgers 16x26x5 F825-0548 2Pack
Our Price: $71.00
Retail: $90.00
You Save 21%!

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Filtrete 1 Inch Carbon Odor Air Filter 14 x 25 x 1 4-Pack 4-Pack
(Filtrete-Odor-14251)

The Filtrete 1 Inch Carbon Odor Air Filter 14 x 25 x 1 is a carbon air filter designed for residential use. This Filtrete air filter effectively removes odors (such as pet, smoke, cooking, mildew, and cleaning chemicals) through activated carbon. Th


In stock! Ships in 1 business day.
Filtrete 1 Inch Carbon Odor Air Filter 14 x 25 x 1 4-Pack
Our Price: $86.44

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Honeywell Trane Perfect Fit 21.5x21x5 BAYFTAH21M 3-Pack
(HTRN2121T1)

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 2 to 3 business days.
Honeywell Trane Perfect Fit 21.5x21x5 BAYFTAH21M 3-Pack
Our Price: $149.00
Retail: $150.00
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American Metal OEMRCR0613 Replacement For GE WB02X10733 Microwave Filter
(OEMRCR0613)

This Microwave Filter Replacement (OEMRCR0613) made by American Metal Filter Company is a compatible replacement microwave filter primarily for the GE WB02X10733 filter. It is a recirculating charcoal carbon microwave filter for use with non-ducted


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American Metal OEMRCR0613 Replacement For GE WB02X10733 Microwave Filter
Our Price: $19.99
Retail: $24.99
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Totaline DTLP102-1620 16x20 MERV 11 Filter
(DTLP102-1620)

The Totaline DTLP102-1620 16x20 MERV 11 Filter features a filter material that is constructed of continuous hydrophobic polyolefin fibers that will not shred or absorb moisture.


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Totaline DTLP102-1620 16x20 MERV 11 Filter
Our Price: $37.45
Retail: $45.99
You Save 19%!

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BestAir R14ALLM Replacement For Bionaire A1000C 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.
BestAir R14ALLM Replacement For Bionaire A1000C 2-Pack
Our Price: $17.99
Retail: $19.99
You Save 10%!

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BestAir R14ALLM Replacement for Honeywell HRF-B2 1 R 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.
BestAir R14ALLM Replacement for Honeywell HRF-B2 1 R 2-Pack
Our Price: $17.99
Retail: $19.99
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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


This item has been discontinued. Please review the product description for more information.
Hoover Air Purifier HEPA & Pre-filter AH60010
Our Price: $19.70
Retail: $19.99
You Save 1%!

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Honeywell Trane Perfect Fit 14.5x27x5 BAYFTFR14M 3-Pack
(HTRN1427T1)

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!

In Stock! Ships in 3 to 4 business days.
Honeywell Trane Perfect Fit 14.5x27x5 BAYFTFR14M 3-Pack
Our Price: $122.00
Retail: $140.00
You Save 13%!

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Honeywell Trane Perfect Fit Filter 21x27x5 BAYFTFR21M
(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!

In Stock! Ships in 2 to 3 business days.
Honeywell Trane Perfect Fit Filter 21x27x5 BAYFTFR21M
Our Price: $154.50
Retail: $179.99
You Save 14%!

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BestAir R14ALLM Replacement For Honeywell 35200 2-Pack
(Honeywell 35200 1 R)

The Honeywell 35200 is the correct replacement for the following air purifiers: Honeywell HEPA Air Purifier Cleaners


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BestAir R14ALLM Replacement For Honeywell 35200 2-Pack
Our Price: $17.99
Retail: $19.99
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Hoover PowerDrive WindTunnel HEPA Vacuum Filter
(40120101)

This Hoover Power-Drive WindTunnel Vacuum Final Filter is a replacement vacuum final filter for Hoover Self-Propelled WindTunnel Upright vacuums with the Hoover Allergen Filtration System.


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Hoover PowerDrive WindTunnel HEPA Vacuum Filter
Our Price: $11.47
Retail: $19.99
You Save 43%!

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FiltersFast A10PR R Replacement For Payne HUMBBSBP2312-A
(P HUMBBSBP2312-A R)

The FiltersFast A10PR R is the correct replacement for the Payne HUMBBSBP2312-A Water Panel Filter and for the following models of humidifiers:


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FiltersFast A10PR R Replacement For Payne HUMBBSBP2312-A
As Low As: $6.99
Retail: $10.99
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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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Lennox X8304 MERV 10 Expandable Filter Kit
Our Price: $101.99
Retail: $104.99
You Save 3%!

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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!

In Stock! Ships in 14 to 15 business days.
Trion Duct Mount HE Plus 2000, 455600-001
Our Price: $430.00
Retail: $520.00
You Save 17%!

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Lennox X8346 PureAir PCO-12C MERV 16 Maintenance Kit 17x26x4
(X8346)

The Lennox X8346 PureAir PCO-12C MERV 16 Maintenance Kit 17x26x4 is the correct upgrade for the following whole-house purification system: Lennox PureAir PCO 12C.

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Lennox X8346 PureAir PCO-12C MERV 16 Maintenance Kit 17x26x4
Our Price: $152.95
Retail: $215.00
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Lennox 91X23 MERV 8 14x20x1 Genuine Pleated Air Filters 4-Pack
(91X23)

The Lennox 91X23 MERV 8 14x20x1 Genuine Pleated Air Filters 4-Pack is a furnace and air conditioning filter that reduces the following allergens:


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Lennox 91X23 MERV 8 14x20x1 Genuine Pleated Air Filters 4-Pack
Our Price: $33.95
Retail: $38.95
You Save 13%!

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Lennox 72H02 Whole House System Air Filter
(72H02)

The Lennox 72H02 Whole House System Air Filter is a replacement air filter for several Lennox model electronic whole house air purifiers. This pre-filter measures approximately 20x13x3/8 and directly replaces part number 72H0201.


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Lennox 72H02 Whole House System Air Filter
Our Price: $17.99
Retail: $20.99
You Save 14%!

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FC40R1830 18x30 Honeywell Return Grille AC Filter 5-Pack
(FC40R1830)

The Honeywell FC40R1830 18x30 Return Air Grille Filter is a high efficiency, replacement air filter for return grille applications. Honeywell replacement furnace filters capture airborne particles that circulate through the furnace filter.


In Stock! Ships in 2 to 3 business days.
FC40R1830 18x30 Honeywell Return Grille AC Filter
Our Price: $217.50

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