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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 5010 Replacement for Honeywell 10590 HEPA Filter
(Honeywell 10590 R)

The Honeywell 10590 HEPA Filter Replacement is a replacement air filter for use with several Honeywell and Duracraft air cleaner models. This HEPA filter measures approximately 10 7/8" OD x 6 1/4" ID x 4" H and removes up to 99.97% of airborne parti


In stock! Ships in 1 business day.
Duracraft 5010 Replacement for Honeywell 10590 HEPA Filter
Our Price: $31.99
Retail: $59.99
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GeneralAire F1018, 4571 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.


Special Order. Ships in 7 days.
GeneralAire F1018, 4571 MERV 11 16x25x4 Media Filter
Our Price: $52.99
Retail: $61.99
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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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In Stock! Ships in 4 to 5 business days.
Lennox X6661 HCC20-28 Healthy Climate HC16 Cabinet
Our Price: $90.95
Retail: $120.99
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Carrier FILCCCAR0016 Air Purifier Filter
(FILCCCAR0016)

The Carrier FILCCCAR0016 Air Purifier Filter is a genuine OEM factory replacement air filter for Bryant, Payne, Day-Night, as well as certain Honeywell, Space-Gard, and Trion air purifiers. It fits numerous units including model numbers FILBBCAR0016


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Carrier FILCCCAR0016 Air Purifier Filter
Our Price: $32.99
Retail: $39.99
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FiltersFast 1" MERV 11 Replacement For Honeywell 14x14x1 MERV 11 6-Pack
(50049536-003)

The Honeywell 14x14x1 MERV 11 Air Filter- TruDRY DR90 is a replacement filter for the Honeywell TrueDry DR90 Dehumidification System. This Honeywell air filter measures 14" x 14" x 1" and has a MERV 11 rating for the reduction of airborne contaminan


In Stock! Ships in 7 to 8 business days.
FiltersFast 1" MERV 11 Replacement For Honeywell 14x14x1 MERV 11 6-Pack
Our Price: $54.50
Retail: $62.99
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Universal Carbon Range Hood Filter - Trim to Fit
(RYM1518C)

This Universal Carbon Oven Range Hood Filter (RYM1518C) is a trim to fit oven range oven carbon filter for use with many over the range oven hoods (ducted and non-ducted), microwave ovens, and other similar applications requiring odor elimination. I


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Universal Carbon Range Hood Filter - Trim to Fit
Our Price: $21.99
Retail: $24.99
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Holmes HWF64 Humidifier Filter
(HWF64)

The Holmes HWF64 Humidifier Filter is designed to maintain optimal peformance of your Holmes Humidifier. Fits models HM1645, HM1730, HM1745, HM1750, and HM2200.


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Holmes HWF64 Humidifier Filter
As Low As: $16.99
Retail: $25.99
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BestAir HM2PR Replacement for Trion Herrmidifier 1220
(7098 11 R)

The BestAir HM2PR Humidifier Filter replaces the filter in your Herrmidifier models 465-C1 and 465-1.


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BestAir HM2PR Replacement for Trion Herrmidifier 1220
Our Price: $9.01
Retail: $9.99
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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: $90.44

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FiltersFast FFC145275TRN Replacement for Trane BAYFTFR14M2 14.5x27x5 2-pack
(FFC145275TRN)

The Trane BAYFTFR14M2 Air Filter is a replacement furnace air filter that fits the TFM145BOFRO Perfect Fit High Efficiency Air Cleaner. This Trane filter is MERV 11 rated to reduce airborne particulates and improve indoor air quality.


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FiltersFast FFC145275TRN Replacement for Trane BAYFTFR14M2 14.5x27x5 2-pack
Our Price: $56.99
Retail: $65.99
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Honeywell FC40R1094 12x12x3 Return Grille Filter
(FC40R1094)

The Honeywell FC40R1094 is a high-efficiency, replacement air filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 12x12x4. Genuine Honeywell Part.


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Honeywell FC40R1094 12x12x3 Return Grille Filter
As Low As: $40.50
Retail: $49.99
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FiltersFast 1" Air Filters MERV 11 Replacement for Nordic Pure MERV 10 6-Pack
(FFM11 6pk ND)

The FiltersFast FFM11 6-Pack is the compatible replacement for the Nordic Pure 1" MERV 10 Air Filters.


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FiltersFast 1" Air Filters MERV 11 Replacement for Nordic Pure MERV 10 6-Pack
Our Price: $60.95
Retail: $77.99
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FiltersFast 14ALL Replacement For Holmes HAPF93
(HAPF93)

The Holmes HAPF93 Carbon Odor Filter Replacement fits Holmes air purifier models Holmes HAP293 (Holmes HAP-293), Holmes HAP2934 (Holmes HAP-2934), and Holmes HAP294 (Holmes HAP-294). This Holmes HEPA filter pad replacement measures approximately 45.


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FiltersFast 14ALL Replacement For Holmes HAPF93
As Low As: $10.95
Retail: $19.99
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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


Special Order. Ships in 18 days.
Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5
Our Price: $105.46

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FiltersFast FFC16265WRMM13 Replacement for White Rodgers F825-0548, 16x26x5 - 2-Pack
(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 FFC16265WRMM13 Replacement for White Rodgers F825-0548, 16x26x5 - 2-Pack
Our Price: $72.00
Retail: $89.99
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FiltersFast 2" Replacement for Geothermal 2" - MERV11, 6-Pack
(FFGM11)

The 2" Geothermal Home Air Filters MERV 11 - 6 Pack is a six pack of replacement air filters utilizing geothermal technology. These air filters also feature a MERV 11 rati


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FiltersFast 2" Replacement for Geothermal 2" - MERV11, 6-Pack
Our Price: $70.95
Retail: $89.99
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GeneralAire F1021, 4572 MERV 13 16x25x4 Media Filter
(4572)

The General Aire F1021 MERV 13 16x25x4 Media Filter is the correct replacement filter for the GeneralAir TERSus1200, and removes airborne particles and allergens as small as 0.3 micron to improve indoor the air quality of your home dramatically.


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GeneralAire F1021, 4572 MERV 13 16x25x4 Media Filter
Our Price: $54.74
Retail: $63.99
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Lennox X5425 MERV 16 Pleated Furnace Filter Media
(X5425)

This Lennox X5425 MERV 16 Pleated Furnace Filter Media is an excellent filter for someone who wants a significant upgrade over standard fiberglass filters from the hardware store. This pleated filter is a genuine MERV 16 filter.

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In Stock! Ships in 5 to 6 business days.
Lennox X5425 MERV 16 Pleated Furnace Filter Media
Our Price: $92.95
Retail: $122.99
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Carrier FILCCCAR0024 Air Purifier Filter 2-Pack
(FILCCCAR0024)

The Carrier FILCCCAR0024 Air Purifier Filter is a genuine OEM factory replacement air filter for Bryant, Carrier, Payne, Day-Night, as well as certain Honeywell, Space-Gard, and Trion air purifiers. It fits numerous units including model numbers FIL


Special Order. Ships in 16 days.
Carrier FILCCCAR0024 Air Purifier Filter 2-Pack
Our Price: $80.95
Retail: $94.99
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Trion Air Bear 255649-101 Replacement For Trion Air Bear AB316258
(AB316258)

The 6-Pack Trion Air Bear Cub Filter is a replacement Trion filter that works in all of your Trion Air Bear cleaners requiring a 16x25x3 size filter. Recommended by the Green Building Council, the Trion Air Bear filters replacement is a HEPA 8 filte


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Trion Air Bear 255649-101 Replacement For Trion Air Bear AB316258
As Low As: $23.49
Retail: $34.99
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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: $20.99
Retail: $24.99
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BestAir A35PR Replacement for SPACE-GARD 35
(SPACE-GARD 35 1R)

This BestAir A35PR humidifier water panel has approximate dimensions of 10" x 13 1/4" x 1 1/2". This metal water panel features honeycomb filtration that traps mineral pollutants.


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BestAir A35PR Replacement for SPACE-GARD 35
As Low As: $8.95
Retail: $11.99
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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


Out of stock
Bionaire 611D Replacement For Bionaire 611DCS Compatible Dual Air Filter
Our Price: $12.99
Retail: $14.99
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BestAir A12PR Replacement for Aprilaire 12 Humidifier Filter
(A12PR)

The BestAir A12PR Humidifier Water Panel Evaporator Replacement is a heavy-duty metal water pad for several AprilAire, Chippewa and Walton humidifier models.


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BestAir A12PR Replacement for Aprilaire 12 Humidifier Filter
As Low As: $11.95
Retail: $16.99
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BestAir R14ALLM Replacement For Kenmore 83157 2-Pack
(KENMORE 83157 1 R)

The Kenmore 83157 Carbon PreFilter 2-Pack is the correct replacement for: several Kenmore air cleaner models This carbon prefilter is a cut to fit sheet that measures 15 3/4" x 48". This Kenmore prefilter removes large particles and common hou


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BestAir R14ALLM Replacement For Kenmore 83157 2-Pack
Our Price: $18.99
Retail: $21.99
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Filters Fast - Air Filters

" Just to express my complete satisfaction with your ordering process and, of course, great pricing. When I need a replacement of refrigerator or HVAC filters, I'll be contacting you again. " - Frank, Corona, CA
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