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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 Trane Perfect Fit Filter 24x27x5 BAYFTFR24M 3-Pack
(HTRN2427T1)

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 13 to 14 business days.
Honeywell Trane Perfect Fit Filter 24x27x5 BAYFTFR24M 3-Pack
Our Price: $150.00
Retail: $179.99
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Lennox 98N42 MERV 8 Pleated Furnace Filters 4-Pack 4-Pack
(98N42)

The Lennox 98N42 is a MERV 8 furnace filter 4-pack for your home. This furnace filter will protect your home from unhealthy contaminants and help keep your heating and cooling bill low.


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Lennox 98N42 MERV 8 Pleated Furnace Filters 4-Pack
Our Price: $39.96

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Lennox X8345 PureAir PCO-20C MERV 16 Upgrade Kit
(X8345)

The Lennox X8345 PureAir PCO-20C MERV 16 Upgrade Kit, part number x8345 is meant for your Lennox PureAir PCO-20C air filtration unit. This MERV 16 filter measures 21" x 26" x 4" inches.

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Lennox X8345 PureAir PCO-20C MERV 16 Upgrade Kit
Our Price: $279.95
Retail: $343.15
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FiltersFast 1" Air Filters MERV 8 Replacement for Nordic Pure MERV 8 6-Pack
(FFM8 6pk ND)

Take advantage of the savings and breathe better with the FiltersFast 1" Air Filters MERV 8 With Pleats 6-Pack.


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FiltersFast 1" Air Filters MERV 8 Replacement for Nordic Pure MERV 8 6-Pack
Our Price: $43.95
Retail: $49.99
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Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1 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


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Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1
Our Price: $215.20

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Honeywell HC-819 Humidifier Wick Filter
(Honeywell HC-819 R)

The Honeywell HC-819 Humidifier Wick Filter-3 Pack is the correct compatible replacement for the following models of humidifiers: Duracraft DH-8000 Duracraft DH-8002 Duracraft DH-8004 Duracraft DH-8005 This humidifier wick filter removes mi


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Honeywell HC-819 Humidifier Wick Filter
Our Price: $10.45
Retail: $16.99
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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.


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

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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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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


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Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5
Our Price: $103.46

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FiltersFast 1" Air Filters MERV 13 Replacement for Aerostar 1" MERV 13 6-Pack
(FFM13 6pk AS)

The FiltersFast 1" Air Filters MERV 13 6-Pack is the compatible replacement for the Aerostar 1" MERV 13 Air Filters.


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FiltersFast 1" Air Filters MERV 13 Replacement for Aerostar 1"  MERV 13 6-Pack
Our Price: $59.95
Retail: $69.99
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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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Trion Duct Mount HE Plus 1400, 455601-001C 16"x25"
Our Price: $371.95
Retail: $440.00
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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.


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Honeywell FC40R1052 16x20 Return Air Grille Filter
Our Price: $259.95

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BestAir R14ALLM Replacement For Vicks CF1 Carbon PreFilter 2-Pack
(VICKS CF1 1 R)

The Vicks CF1 Carbon PreFilter 2-Pack helps control odors and other impurities within the air. The Vicks CF1 Carbon PreFilter should be replaced every 3 months, depending upon air quality.


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BestAir R14ALLM Replacement For Vicks CF1 Carbon PreFilter 2-Pack
Our Price: $17.99
Retail: $19.99
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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 1" Air Filters MERV 8 Replacement for Aerostar Air Filters 6-Pack
(FFM8 6pk AS)

The FiltersFast 1" Air Filters MERV 8 With Pleats 6-Pack is the compatible replacement for the Aerostar Air Filters MERV 8 1" Air Filter.


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FiltersFast 1" Air Filters MERV 8 Replacement for Aerostar Air Filters 6-Pack
Our Price: $43.95
Retail: $49.99
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Lennox X6661 HCC20-28 Healthy Climate HC16 Cabinet
(X6661)

The Lennox X6661 HCC20-28 Healthy Climate HC16 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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Lennox X6661 HCC20-28 Healthy Climate HC16 Cabinet
Our Price: $89.95
Retail: $120.95
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BestAir 24000 R Replacement for Honeywell 24000
(24000)

The BestAir 24000 R HEPA Air Filter is the compatible replacement for the Honeywell 24000 HEPA Air Filter.


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BestAir 24000 R Replacement for Honeywell 24000
Our Price: $56.99
Retail: $69.99
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Goodman G13MU1625 Replacement Air Filters 3-Pack
(G1-1056)

The Goodman G13MU1625 Replacement Air Filters uses both charged fibers and traditional mechanical filtration principles.

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Goodman G13MU1625 Replacement Air Filters 3-Pack
Our Price: $249.99
Retail: $299.99
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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: $9.99

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BestAir R14ALLM Replacement For Kenmore 83237 2-Pack
(KENMORE 83237 1 R)

The Kenmore 83237 is the correct replacement for the following air cleaners: Kenmore Air Cleaners


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BestAir R14ALLM Replacement For Kenmore 83237 2-Pack
Our Price: $17.99
Retail: $19.99
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Honeywell 203719 Comp Furnace Air Filter - 16x25x5
(203719)

The Honeywell 203719 Furnace Air Filter - 16x25x5 is a replacement air filter for use with the Honeywell 16X25 model F100 and F200 air cleaners. This Honeywell air filter, also known as the Honeywell FC100A1029, has a MERV 10 rating and traps 96% of


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Honeywell 203719 Comp Furnace Air Filter - 16x25x5
As Low As: $36.00
Retail: $39.95
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Totaline P102-1625 16x25 MERV 11 Filter
(P102-1625)

The Totaline P102-1625 16x25 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 P102-1625 16x25 MERV 11 Filter
Our Price: $33.95
Retail: $44.99
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Filtrete One Inch Odor Air Filter - 20 x 30 x 1 4-Pack
(Filtrete-Odor-20301)

The Filtrete One Inch Odor Air Filter - 20 x 30 x 1 is constructed with activated carbon to remove common odors from your home, including pet, smoke, cooking, mildew, and cleaning chemicals. In addition to creating a more breathable atmosphere, this


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Filtrete One Inch Odor Air Filter - 20 x 30 x 1
Our Price: $86.44

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Filtrete Home Odor Air Filter- 14 x 20 x 1
(Filtrete-Odor-14201)

The Filtrete Home Odor Air Filter- 14 x 20 x 1 effectively removes common odors in your home while also trapping airborne contaminants. This odor filter is constructed with activated carbon to remove odors like pet, smoke, cooking, mildew, and clean


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Filtrete Home Odor Air Filter- 14 x 20 x 1
Our Price: $21.61
Retail: $29.99
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Lennox X8314 MERV 16 Expandable Filter Replacement for PMAC-20C
(X8314)

The Lennox X8314 is the correct replacement for the following air cleaner: Lennox PMAC-20C Healthy Climate Air Cleaner

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Lennox X8314 MERV 16 Expandable Filter Replacement for PMAC-20C
Our Price: $79.95
Retail: $114.99
You Save 30%!

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Filters Fast - Air Filters

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