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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:


Lennox X8306 MERV 16 HCXF16-16 Expandable Filter Kit
(X8306)

The Lennox X8306 expandable filter HCXF16-16 is a MERV 16 furnace filter for your home. This Lennox healthy climate filter measures 16x25x5 inches.

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In Stock! Ships in 2 to 3 business days.
Lennox X8306 MERV 16 HCXF16-16 Expandable Filter Kit
Our Price: $143.95
Retail: $169.99
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Lennox X8308 MERV 16 Expandable Filter Kit
(X8308)

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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In Stock! Ships in 1 to 2 business days.
Lennox X8308 MERV 16 Expandable Filter Kit
Our Price: $132.99
Retail: $155.99
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FiltersFast 5" FFC175275TRN OKGM Air Filter - 2-Pack
(FFC175275TRN OKGM)

The FiltersFast 5" Trane Compatible FFC175275TRN OKGM is a compatible replacement air filter that replaces the Trane BAYFTFR17M and Trane FLR06069 air filters, both of which can be used in several models of Trane Air Cleaners. This 5" filter boasts


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FiltersFast 5" FFC175275TRN OKGM Air Filter - 2-Pack
Our Price: $71.99
Retail: $104.99
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Trion 3508 Humidifier Filter Pad Replacement
(3508)

The Trion 3508 Humidifier Filter Pad Replacement is a replacement humidifier pad for the Herrmidifier Model 3500 Humidifiers. This Trion humidifier filter is also known as a foam filter belt and measures approximately 16 inches x 11 3/8 inches x 1 1


In Stock! Ships in 17 to 18 business days.
Trion 3508 Humidifier Filter Pad Replacement
Our Price: $29.95
Retail: $34.95
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Honeywell FC40R1185 Return Air Grille Filter 18x18 5-Pack
(FC40R1185)

The Honeywell FC40R1185 Return Air Grille Filter 18x18 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


In Stock! Ships in 53 to 54 business days.
Honeywell FC40R1185 Return Air Grille Filter 18x18
Our Price: $257.50

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Trion 1000-3000-0101 Replacement Air Filter 2-Pack
(1000-3000-0101)

The Trion 1000-3000-0101 Replacement Air Filter 2-Pack is a replacement air filter for the Trion CAC500 and CAC500 air cleaners. This CAC500M filter features pleated media to trap contaminants and improve overall indoor air quality. This Trion filte

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Trion 1000-3000-0101 Replacement Air Filter 2-Pack
Our Price: $218.67
Retail: $299.99
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American Metal Filter RCP0907 Replacement Range Hood Filter
(RCP0907)

The GE WB2X8293 Compatible Range Hood Filter measures 9" x 10 1/2" x 3/8" (measure your old filter to ensure a perfect fit). This carbon range hood filter is a compatible replacement for the GE WB2X8293 and is not washable. This charcoal filter opti


In Stock! Ships in 8 to 9 business days.
American Metal Filter RCP0907 Replacement Range Hood Filter
Our Price: $8.09
Retail: $9.99
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American Metal OEMRCP0205 Replacement For LG 5230W2A003C
(5230W2A003C)

The LG 5230W2A003C Comp. Microwave Charcoal Filter, made by the American Metal Filter Company, is a compatible replacement for the LG 5230W2A003C, LG 5230W2A003A, and GE WB02X10943 activated charcoal filters. This microwave grease filter reduces kit


In Stock! Ships in 8 to 9 business days.
American Metal OEMRCP0205 Replacement For LG 5230W2A003C
Our Price: $5.99

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Honeywell F200E1003 16x20 Air Cleaner
(F200E1003)

The Honeywell F200E1003 16x20 Air Cleaner is applicable to all gas, oil and electric forced warm air furnaces and to compressor cooling up to 5 tons.

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In Stock! Ships in 10 to 11 business days.
Honeywell F200E1003 16x20 Air Cleaner
Our Price: $232.99
Retail: $299.99
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Honeywell HF100F1620 Replacement For Honeywell F100F2028
(F100F2028)

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

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Honeywell HF100F1620  Replacement For Honeywell F100F2028
Our Price: $159.95
Retail: $199.99
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Honeywell F100F2036 20x20 Whole Home Air Purifier
(F100F2036)

The Honeywell F100F2036 20x20 Whole Home Air Purifier uses a 4-inch extended media that makes replacement quick and easy.

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In Stock! Ships in 93 to 94 business days.
Honeywell F100F2036 20x20 Whole Home Air Purifier
Our Price: $159.95
Retail: $249.99
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Honeywell F100F2044 25x20 Whole House Air Cleaner
(F100F2044)

The Honeywell F100F2044 25x20 Whole House Air Cleaner does not require electrical connections and mounts in the return air duct in any position.

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Honeywell F100F2044 25x20 Whole House Air Cleaner
Our Price: $124.69
Retail: $145.99
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Honeywell F100F2051 25x22 Whole Home Air Purifier
(F100F2051)

The Honeywell F100F2051 25x22 Air Purifier System is applicable to all gas, oil and electric forced air furnaces and to compressor cooling up to 5 tons.

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In Stock! Ships in 64 to 65 business days.
Honeywell F100F2051 25x22 Whole Home Air Purifier
Our Price: $105.00
Retail: $118.99
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Honeywell F300E1001 16x20 Electronic Air Cleaner
(F300E1001)

The Honeywell F300E1001 16x20 Electronic Air Cleaner optimizes efficiency with airflow that captures up to 98% of airborne particles that passes through it.

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In Stock! Ships in 10 to 11 business days.
Honeywell F300E1001 16x20 Electronic Air Cleaner
Our Price: $549.95
Retail: $999.99
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Honeywell F300E1019 16x25 Electronic Air Purifier
(F300E1019)

THe Honeywell F300E1019 16x25 Electronic Air Purifier optimizes efficiency with airflow that captures up to 98% of airborne particles that passes through it.

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In Stock! Ships in 1 to 2 business days.
Honeywell F300E1019 16x25 Electronic Air Purifier
Our Price: $599.95
Retail: $672.99
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AMP-G8-1056 Replacement for Goodman G13MU2025 - 4-Pack
(G8-1056)

The Goodman G13MU2025 Air Filter Replacements - 4 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 11 to 12 business days.
AMP-G8-1056 Replacement for Goodman G13MU2025 - 4-Pack
Our Price: $324.95
Retail: $399.99
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BestAir A12WPR Replacement for Space-Gard #12 Humidifier Filter
(Space-Gard 12 R)

The BestAir A12WPR Humidifier Water Panel Replacement generates the type of humidity needed for your indoor air during the heating season.


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BestAir A12WPR Replacement for Space-Gard #12 Humidifier Filter
As Low As: $12.95
Retail: $19.99
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Hunter 30938 QuietFlo HEPA Purifier Filter 3-Pack
(30938)

The Hunter 30938 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


Special Order. Ships in 5 days.
Hunter 30938 QuietFlo HEPA Purifier Filter
Our Price: $191.58

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Hunter 30960 QuietFlo HEPA Purifier Filter 3-Pack
(30960)

The Hunter 30960 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


Special Order. Ships in 10 days.
Hunter 30960 QuietFlo HEPA Purifier Filter
Our Price: $213.75

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Hunter 30965 QuietFlo HEPA Purifier Filter 3-Pack
(30965)

The Hunter 30965 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns. This is a true HEPA filter and a genuine OEM Hunter part.


Special Order. Ships in 7 days.
Hunter 30965 QuietFlo HEPA Purifier Filter
Our Price: $113.97

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Honeywell FC2400A1005 Replacement for Aprilaire SpaceGard 2400 - 12-Pack 12-Pack
(FC2400A1005)

The Honeywell FC2400A1005 is a compatible AC filter for the Aprilaire and Space Gard 2400 (filter model 401) and is also used in Research Products cabinet models 2200, 2250 and 2400. This filter boasts a MERV 10 rating.


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Honeywell FC2400A1005 Replacement for Aprilaire SpaceGard 2400 - 12-Pack
Our Price: $573.60

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Carrier 356066-1201 Charcoal Filter EACBAXCC0020 2-Pack
(356066-1201)

The Carrier 356066-1201 Charcoal Filter is a genuine OEM factory replacement charcoal carbon filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0020 Electronic Air Cleaner.


Special Order. Ships in 9 days.
Carrier 356066-1201 Charcoal Filter EACBAXCC0020
Our Price: $98.96

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3M Filtrete OAC150RF Replacement for 3M Filtrete OAC150 - 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.


Special Order. Ships in 11 days.
3M Filtrete OAC150RF Replacement for 3M Filtrete OAC150 - 6-Pack
Our Price: $168.00

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Holmes HAPF41 Air Purifier Carbon Prefilter 2-Pack
(ROHAPF41M)

The Holmes HAPF41 Air Purifier Carbon PreFilter-2 Pack is a replacement pack of carbon pre-filters for the Holmes HAP-300 and Holmes HAP-3004 air purifiers. This two pack of carbon filters protects the HEPA filter of your Holmes air cleaner and prev


Special Order. Ships in 12 days.
Holmes HAPF41 Air Purifier Carbon Prefilter
Our Price: $19.96

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GeneralAire 100329 Ventilator Filter Replacement
(4667)

The GeneralAire 100329 Ventilator Filter Replacement is the correct replacement for the following models of energy/heat recovery ventilators: ERV3220 HRV8220 Energy/heat recovery ventilators bring fresh outdoor air into your home while gettin


Special Order. Ships in 9 days.
GeneralAire 100329 Ventilator Filter Replacement
Our Price: $52.99
Retail: $69.99
You Save 24%!

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