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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.


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Air Filters full product list:


FiltersFast A10PR R Replacement for Carrier HUMBBSBP2312-A
(C HUMBBSBP2312-A R)

The Carrier HUMBBSBP2312-A Water Panel Filter is a replacement water panel filter for the HUMCCSBP2312-A and HUMBBSBP2312-A Carrier model humidifiers. This evaporator pad measures approximately 9.5" x 10" x 1.5" and generates humidity in the home th


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FiltersFast A10PR R Replacement for Carrier HUMBBSBP2312-A
As Low As: $6.99
Retail: $10.99
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Aprilaire 1200 Humidifier Filter Pad Water Panel
(Aprilaire 1200)

This is an Aprilaire 1200 Humidifier Filter Pad Water Panel for various Aprilaire commercial humidifiers including the Aprilaire 1120 Humidifier, Aprilaire 1130 humidifier, and the Aprilaire 1140 humidifer. The Aprilaire water panel evaporator is th


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Aprilaire 1200 Humidifier Filter Pad Water Panel
Our Price: $60.99
Retail: $90.60
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Honeywell 32000146-001 Humidifier Filter
(7098 13 R)

The Honeywell 32000146-001 Humidifier Filter is a replacement humdifier filter made for several Honeywell drum-type humidifier models. This Honeywell evaporator pad measures approximately 7.5" H x 26.5" L x 1" W and removes minerals from evaporating


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Honeywell 32000146-001 Humidifier Filter
Our Price: $8.01
Retail: $9.99
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12488101 Refrigerator Air Filter
(12488101)

The 12488101 Refrigerator Air Filter fits some newer Amana models.


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12488101 Refrigerator Air Filter
Our Price: $12.99
Retail: $14.99
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FiltersFast FFC16205HONM13 Replacement for Honeywell FC100A1003
(FFC16205HONM13)

The FiltersFast FFC16205HONM13 compatible air filter replaces the Honeywell FC100A1003 and effectively reduces indoor air contaminants using a deep pleated filter media.


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FiltersFast FFC16205HONM13 Replacement for Honeywell FC100A1003
Our Price: $57.95
Retail: $64.95
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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: $39.50
Retail: $50.00
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IcePure Replacement for GE Cafe Series Odor Filter
(AF005)

The IcePure AF005 Replacement for the GE Cafe Series Odor Filter uses a powerful charcoal filter to help reduce odor inside your refrigerator.

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IcePure Replacement for GE Cafe Series Odor Filter
Our Price: $17.75
Retail: $23.35
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FilterFast Trane 21.5x21x5 Perfect Fit BAYFTAH21M M13
(FFC215215TRNM13)

The FilterFast Brand Trane 21.5x21x5 Perfect Fit Filter BAYFTAH21M is a compatible economical alternative for the genuine Trane 21.5x21x5 Perfect Fit Filter that comes in a 2-pack value set.

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FilterFast Trane 21.5x21x5 Perfect Fit BAYFTAH21M M13
Our Price: $111.00
Retail: $140.00
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GeneralAire 4556 MERV 11 Replacement For GeneralAire 4531
(4531)

The General Aire 5FM2020 MERV10 Media Cartridge measures 20"x20"x5", and is used on GeneralAire MAC 2020 Series and TRION AirBear Supreme 20x20 Systems. This General Aire filter will reduce airborne particulates to provide healthier indoor air.


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GeneralAire 4556 MERV 11 Replacement For GeneralAire 4531
Our Price: $35.99
Retail: $49.99
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Honeywell FC40R1144 Return Air Filter - 20x24
(FC40R1144)

The Honeywell FC40R1144 Return Air Filter - 20x24 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 inch


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Honeywell FC40R1144 Return Air Filter - 20x24
Our Price: $50.25
Retail: $69.99
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FiltersFast MERV 7 Pleated Filters 6 pk
(FFM7Pleat)

With an initial pressure drop of around .17, these FiltersFast 2" MERV 7 Pleated Panel Filters are comparable to or an upgrade over such other pleat filters as the American Air or AmAir PerfectPleat, the Airguard Xtreme Pleated Panel Filters ...


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FiltersFast MERV 7 Pleated Filters 6 pk
Our Price: $28.95
Retail: $39.00
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GeneralAire 13415 MERV 11 Filter Media for AC4
(GA 4401)

The GeneralAire air cleaner filter replacement is manufactured for your AC4 furnace air cleaner. This air cleaner filter cartridge features a MERV 11 rating that will capture particulates down to 3 microns in size. This genuine GeneralAire product i


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GeneralAire 13415 MERV 11 Filter Media for AC4
Our Price: $31.99

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General Aire 16x25 MERV10 Filter Media GA100A29
(4352)

The General Aire GA100A29 16x25 MERV10 Filter Media is the correct replacement filter for Honeywell F100 Series and Honeywell F150 Series Media Style Air Cleaners. These filters remove airborne particles to 1.0 micron to provide healthier indoor air.


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General Aire 16x25 MERV10 Filter Media GA100A29
Our Price: $37.99
Retail: $39.99
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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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Hunter 30930 HEPAtech Purifier Filter
(30930)

The Hunter 30930 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 30930 HEPAtech Purifier Filter
Our Price: $27.95
Retail: $29.95
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Honeywell 209894 Replacement 16x20 Air Filter
(209894 R)

The Honeywell 209894 Replacement 16x20 Air Filter is a replacement furnace air filter for use with Honeywell 16 x 20 Air Cleaners, including the Honeywell F100F1004, F100B1008, F150E1000, F100F2028, and other models. This Honeywell furnace filter, a


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Honeywell 209894 Replacement 16x20 Air Filter
As Low As: $30.99
Retail: $49.99
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Whirlpool 1183051, 1187018 HEPA Filter
(1183051)

The Whirlpool Whispure 1183051 HEPA Filter fits Whirlpool Model AP250. The 1183051 helps effectively reduce airborne irritants such as smoke, dust, pet dander, pollen, mold spores, and fabric fibers.


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Whirlpool 1183051, 1187018 HEPA Filter
Our Price: $84.99
Retail: $99.99
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Aprilaire 4510 Replacement Air Filter-1700, 1710A
(4510)

The Aprilaire 4510 is the correct replacement for the following dehumidifier: Aprilaire 1700 Dehumidifier


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Aprilaire 4510 Replacement Air Filter-1700, 1710A
Our Price: $32.95
Retail: $39.99
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FiltersFast A10WPR Replacement For Carrier P1101045
(P110-1045)

The Carrier P110-1045 Paper Water Panel Filter measures 9-1/2" x 9-3/4" x 1-1/2" (approx.), and is the correct replacement filter for many humidifiers made by AprilAire, Bryant, Carrier, Chippewa, Hamilton, Honeywell, Lasko, Lennox and Totaline.


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FiltersFast A10WPR Replacement For Carrier P1101045
Our Price: $15.99
Retail: $19.99
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Honeywell HAC-506 Humidifier Filters 2-Pack
(D13-C)

Humidifier filter removes mineral and pollutants from water. The Honeywell HAC-506 compatible humidifier filters comes in a convenient 2-Pack and fits select humidifier models including Duracraft.


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Honeywell HAC-506 Humidifier Filters 2-Pack
Our Price: $11.99
Retail: $12.99
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Bionaire A2001D Replacement Air Cleaner Filter
(A2001D R)

The Bionaire A2001D Replacement Air Cleaner Filter fits the following model of air cleaner: Bionaire SE2080 This Bionaire air purifier filter is a dual filter, with a pleated filter as well as a carbon filter. The Bionaire A2001D has approxima


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Bionaire A2001D Replacement Air Cleaner Filter
Our Price: $20.99
Retail: $29.99
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GeneralAire HMK500 Filter Replacement Kit 2-Pack 2-Pack
(4610)

The GeneralAire HMK500 is the correct replacement for the following air cleaner: GeneralAire AC500 Whole House HEPA Filtration System.


In Stock! Ships in 3 to 4 business days.
GeneralAire HMK500 Filter Replacement Kit 2-Pack
Our Price: $83.98

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Trion Air Bear Supreme Filter 20x20x5 MERV11
(259112-103)

The Trion Air Bear Supreme Filter 20x20x5 MERV11 is an Air Bear filter with a MERV 11 rating and built-in frame strength. This genuine Air Bear filter boasts pre-applied gasketing on the pre-assembled filter in order to prevent air bypass. The MERV


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Trion Air Bear Supreme Filter 20x20x5 MERV11
Our Price: $47.99
Retail: $49.99
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Trion Air Bear Media AC Filter 16x25x3 6-Pack
(255649-101 6pack)

The Trion Air Bear 255649-101 AC Filter Media is a genuine Trion Air Bear pleated media filter. The 255649-101 can be used in Trion models Air Bear TM and Air Bear Cub. Replaces 229990-101 and 229990-001 as an upgrade.

Free shipping within the continental United States!

Out of stock
Trion Air Bear Media AC Filter 16x25x3 6-Pack
Our Price: $100.95
Retail: $132.00
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Holmes HWF75 Humidifier Filter - HM1700, HM1280
(HWF75)

Holmes HWF75 Humidifier Filter features Microban technology and is designed for use with Humidifier Models: HM3500, HM3600, HM3640, HM3641, HM3650, HM3655, WWH3300, and WWHM3600.


Discontinued Product Read Description.
Holmes HWF75 Humidifier Filter - HM1700, HM1280
Our Price: $20.99

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