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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:


Duracraft HEP-5030 Replacement HEPA Filter
(Duracraft HEP-5030 R)

The Duracraft HEP-5030 Replacement HEPA Filter is a replacement air filter for the Duracraft DA-5030 and DA-5000C air cleaner models. This HEPA filter removes 99.7% of airborne particles as small as 0.3 microns, including pollen, mold spores, pet da


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Duracraft HEP-5030 Replacement HEPA Filter
Our Price: $49.99
Retail: $69.99
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3M Filtrete OAC150 Replacement Filter - 6-Pack 6-Pack
(OAC150RF)

The 3M Filtrete OAC150 Replacement Air Cleaner Filter is used in the 3M Filtrete OAC150 Office Air Cleaner. This replacement filter is also known as part number OAC150RF.

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3M Filtrete OAC150 Replacement Filter - 6-Pack
Our Price: $162.00

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BestAir R14ALLM Replacement For Kenmore 83156 2-Pack
(KENMORE 83156 1 R)

The Kenmore 83156 Carbon PreFilter 2 Pack works with your Kenmore 83250 and 85250 model Air Purifier. These replacement carbon prefilters measure approximately 14.5" x 11" inches and will protect your HEPA filter while removing harmful particles and


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BestAir R14ALLM Replacement For Kenmore 83156 2-Pack
Our Price: $17.99
Retail: $19.99
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FiltersFast Replacement For Honeywell FC100A1003 MERV 8 Comp. Filter-16x20x5
(FFC16205HONM8)

The FiltersFast FFC16205HONM8 compatible air filter replaces the Honeywell FC100A1003 and utilizes an extra deep pleated media for greater filtration capacities.


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FiltersFast Replacement For Honeywell FC100A1003 MERV 8 Comp. Filter-16x20x5
Our Price: $40.95
Retail: $49.95
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Honeywell 50000293-003 Post Air Filter - 10x20 2pk 2-Pack
(50000293-003)

The Honeywell 50000293-003 is a post filter that fits the following electronic air cleaner models: Honeywell F50F Honeywell F58F Honeywell F300 The Honeywell 50000293-003 Post Air Filter - 10x20 improves the performance and efficiency of the


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Honeywell 50000293-003 Post Air Filter - 10x20 2pk
Our Price: $87.98

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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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Trion Herrmidifier 1220 Humidifier Filter
(7098 11 R)

The Trion Herrmidifier 1220 Humidifier Filter Replacement is a replacement humidifier filter for the Herrmidifier Model 465-C1 and Herrmidifier 465-1. This filter is very dependable and reliable.


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Trion Herrmidifier 1220 Humidifier Filter
Our Price: $8.01
Retail: $9.99
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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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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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AMP-G8-1056 Replacement for Goodman G13MU2025 3-Pack
Our Price: $174.00
Retail: $199.99
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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
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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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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


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BestAir R14ALLM Replacement for Honeywell HRF-B2 1 R 2-Pack
Our Price: $17.99
Retail: $19.99
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Duracraft ACA-1010 Air Cleaner Filter Replacement
(ACA-1010 R)

The Duracraft ACA-1010 Air Cleaner Filter Replacement is a HEPA filter which is 99.97% effective at removing dust, dirt, pollen, fibers, pet hair and dander, mold and spores as small as 0.3 microns.


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Duracraft ACA-1010 Air Cleaner Filter Replacement
Our Price: $20.99
Retail: $24.39
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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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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


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Filtrete 1 Inch Carbon Odor Air Filter 14 x 25 x 1 4-Pack
Our Price: $86.44

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BestAir Ceiling Fan Air Filter 6-Pack
(CF2)

The BestAir Ceiling Fan Air Filter comes in this convenient, cost effective 2-pack value set.


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BestAir Ceiling Fan Air Filter
Our Price: $23.94

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Hunter 30931 HEPAtech Purifier Filter
(30931)

The Hunter 30931 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.97% of particles as small as 0.3 microns.


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Hunter 30931 HEPAtech Purifier Filter
Our Price: $40.75
Retail: $49.99
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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.

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Lennox 92X17 HEPA Filter Cartridge Replacement
Our Price: $128.25
Retail: $198.40
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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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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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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

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Honeywell Trane Perfect Fit 14.5x27x5 BAYFTFR14M 3-Pack
Our Price: $122.00
Retail: $140.00
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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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GeneralAire F1018 MERV 11 16x25x4 Media Filter
(4571)

The General Aire F1018 MERV 11 16x25x4 Media Filter is the correct filter replacement for the General Air TERSus 1200, and removes airborne allergens and particles down to 0.3 microns to improve indoor air quality of your home dramatically.


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GeneralAire F1018 MERV 11 16x25x4 Media Filter
Our Price: $51.99
Retail: $59.99
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Filtrete Home Odor Air Filter - 16 x 20 x 1 4-Pack
(Filtrete-Odor-16201)

The Filtrete Home Odor Air Filter - 16 x 20 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 car


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Filtrete Home Odor Air Filter - 16 x 20 x 1
Our Price: $86.44

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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


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Trion Air Bear Supreme 1400 Comp Air Filters 2-Pk
Our Price: $63.90

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