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Air Filter Shield

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:


FiltersFast FFC20255TABM8 20x25x5 Filter 2-Pack
(FFC20255TABM8)

The FiltersFast FFC20255TABM8 compatible filter is a replacement for the OEM Trion 20x25x5 Air Bear Media AC Filter 255649-102. This Air Bear Replacement Filter captures airborne allergens like dust, pollen, pet dander, mold, spores and smoke.


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FiltersFast FFC20255TABM8 20x25x5 Filter 2-Pack
Our Price: $35.95
Retail: $50.00
You Save 28%!

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Filtrete Ultimate Allergen Filter Deep Blue 6-Pack
(Ultimate Allergen 6pack)

The Ultimate Allergen Reduction Air Filter boasts a 1900 Microparticle Performance Rating (MPR), which represents the effectiveness of a filter at capturing the smallest airborne particles measured in the industry standard test.

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Filtrete Ultimate Allergen Filter Deep Blue 6-Pack
Our Price: $121.99
Retail: $124.99
You Save 2%!

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Trion 255649-102 Air Bear Replacement Filter 20x25x5 - 3-Pack
(255649-102 3pack)

Help keep air conditioning equipment working efficiently and the air you breathe clean with the Trion 255649-102 replacement Air Bear whole-house filter.


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Trion 255649-102 Air Bear Replacement Filter 20x25x5 - 3-Pack
Our Price: $60.99
Retail: $75.00
You Save 19%!

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FiltersFast MERV 8- 2" Furnace Air Filters 6-Pack
(FFM86)

Upgrade your 1" air filter with our new 2" MERV 8 air filters. Like our 1" MERV 8 filters, these 2" furnace filters will reduce dust, pollen, pet dander and other contaminants from your air. By doing so, you will help eliminate allergy & sinus issues


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FiltersFast MERV 8- 2" Furnace Air Filters 6-Pack
Our Price: $55.99
Retail: $69.99
You Save 20%!

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Aprilaire 401 Replacement Air Filter for 2400 Air Cleaner
(Aprilaire 401)

This genuine Spacegard Aprilaire 2400 Filter Media Replacement, also known as the Aprilaire 401 Filter, is the replacement filter used in the Spacegard Aprilaire 2400 Air Cleaner. The Aprilaire 401 Air Filter / Aprilaire 2400 Replacement Filter is a


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Aprilaire 401 Replacement Air Filter for 2400 Air Cleaner
As Low As: $27.89
Retail: $49.99
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Honeywell FC100A1037 Air Filter 20x25x4 Merv10 High Efficiency
(FC100A1037)

The Honeywell 20X25 Air Filter Replacement is a MERV 10 high efficiency media air cleaner that can be used in all compatible size air ducts plus Honeywell cleaners that require a 20"W x 25"L x 5"D filter. It will also fit the following Honeywell Med


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Honeywell FC100A1037 Air Filter 20x25x4 Merv10 High Efficiency
As Low As: $29.99
Retail: $34.99
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3M Filtrete Ultra Allergen Air Filters 6-Pack
(Purple 6-PACK)

The 3M Filtrete Ultra Allergen Air Filter is the #1 Performance Filter on the market -- outperforming all other 1" AC Filters available! Not only will the Ultra Allergen use electrostatically charged fibers to attract & retain micro-particles it

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3M Filtrete Ultra Allergen Air Filters 6-Pack
Our Price: $120.99
Retail: $149.99
You Save 19%!

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Lennox X6673 MERV 11 HCF20-11 HCF20-16 Filter Replacement-20x25x5
(X6673)

This Lennox X6673 MERV 11 HCF20-11 HCF20-16 Furnace Filter Replacement is an efficient alternative to one-inch filters. This Lennox Air Filter Media is a suitable replacement for Air Cleaners that accept a 20X25X5 filter media.


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Lennox X6673 MERV 11 HCF20-11 HCF20-16 Filter Replacement-20x25x5
Our Price: $33.95
Retail: $75.65
You Save 55%!

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Honeywell Enviracaire HC26E1004 Humidifier Filter
(HC26E 1004)

The Honeywell Enviracaire HC26E 1004 replacement genuine humidifier filter features Agion antimicrobial protection to prevent bacterial growth.


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Honeywell Enviracaire HC26E1004 Humidifier Filter
As Low As: $16.45
Retail: $24.89
You Save 34%!

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Filtrete Ultimate Allergen Air Filter (Deep Blue)
(Ultimate Allergen)

The Ultimate Allergen Reduction Air Filter boasts a 1900 Microparticle Performance Rating (MPR), which represents the effectiveness of a filter at capturing the smallest airborne particles measured in the industry standard test.


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Filtrete Ultimate Allergen Air Filter (Deep Blue)
Our Price: $21.99
Retail: $29.99
You Save 27%!

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FiltersFast 2" MERV 11 Air Filters 6-Pack
(FFM1162)

The FiltersFast 2" MERV 11 Air Filters are an economical alternative to genuine OEM air furnace filters of the same size and come in a convenient 6-pack value set.


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FiltersFast 2" MERV 11 Air Filters 6-Pack
Our Price: $67.99
Retail: $89.99
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Carrier GAPCCCAR1625 Air Filter for GAPAAXCC1625
(GAPCCCAR1625)

The Carrier GAPCCCAR1625 Air Filter is an air purifier filter replacement for the Carrier GAPAAXCC1625 GAPA Infinity Air Purifier. It will also fit compatible units by Bryant, Payne, Day-Night, as well as certain Honeywell, Space-Gard, and Trion air

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Carrier GAPCCCAR1625 Air Filter for GAPAAXCC1625
Our Price: $84.95
Retail: $99.99
You Save 15%!

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Filtrete Micro Allergen Air Filter (Red Series)
(Micro Allergen)

The Filtrete Micro Allergen Air Filter blows away the competition when it comes to performance and filtration. The Filtrete "Red" Series AC Filter features 3M patented, electrostatically charged fibers which attract and retain microscopic particles


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Filtrete Micro Allergen Air Filter (Red Series)
Our Price: $20.99
Retail: $29.99
You Save 30%!

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Honeywell FC100A1029 Media Furnace Filter- 16 x 25
(FC100A1029)

Improve the quality of air around your home with the Honeywell FC100A1029 replacement air filter media. The deep pleated 5-inch filter design features a greater surface area to improve air flow during the life of the product.


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Honeywell FC100A1029 Media Furnace Filter- 16 x 25
As Low As: $36.00
Retail: $37.00
You Save 3%!

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FiltersFast FFFAPF02 Replacement for 3M Filtrete FAPF02
(FFFAPF02)

The FiltersFast Filtrete FFFAPF02 Compatible Air Filter is a compatible replacement filter to 3M Filtrete's FAPF02 Air Filter and as such is a replacement filter for Filtrete's Ultra Clean Air Purifier model FAP02-RS.


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FiltersFast FFFAPF02 Replacement for 3M Filtrete FAPF02
As Low As: $14.95
Retail: $17.95
You Save 17%!

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Trion Air Bear Filter 20 x 25 x 5 - 255649-102
(255649-102)

The Trion Air Bear Media AC Filter 20x25x5 part number 255649-102 is a genuine Trion Air Bear pleated media filter. The 255649102 replaces part numbers 229990-002, 229990-102, and can be used in Trion Air Bear air cleaners. Genuine Trion part.


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Trion Air Bear Filter 20 x 25 x 5 - 255649-102
Our Price: $28.99
Retail: $29.99
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Holmes HWF62 Humidifier Filter - HM1280, HM1700
(HWF62)

Holmes HWF62 Humidifier Filter features Microban technology and is designed for use with Humidifier Models: HLS1300, HLS1400, HM1230, HM1280, HM1285, HM1295, HM1295, HM1296, HM1700, HM1760, HM2408, HM1275, HM1450, and HM1740.


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Holmes HWF62 Humidifier Filter - HM1280, HM1700
Our Price: $13.99
Retail: $14.99
You Save 7%!

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FiltersFast Brand Trion 16x25x5 Air Bear Filters MERV8 - 2-Pack
(FFC16255TABM8)

The FiltersFast Brand Trion 16x25x5 Air Bear Filters Merv8 Furnace Filter is an economical alternative to the OEM Trion 16x25x5 Air Bear Media AC Filter 255649-105.


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FiltersFast Brand Trion 16x25x5 Air Bear Filters MERV8 - 2-Pack
Our Price: $33.95
Retail: $40.00
You Save 15%!

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FiltersFast A10PR Replacement for Aprilaire 10
(A10PR)

The FiltersFast Brand Aprilaire 550 Humidifier Panel #10 fits Aprilaire, Chippewa, Hamilton, Honeywell, Lasko, Carrier, Bryant, Totaline and Lennox Humidifier systems.


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FiltersFast A10PR Replacement for Aprilaire 10
As Low As: $6.99
Retail: $19.99
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FiltersFast FFC162766SGMM13 Replacement for Aprilaire 2400 MERV13
(FFC162766SGMM13)

The FiltersFast Brand Aprilaire SpaceGard 2400 MERV 13 2-Pack Air Filter is a compatible filter replacement for the Aprilaire SpaceGard 2400 Air Cleaner System.


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FiltersFast FFC162766SGMM13 Replacement for Aprilaire 2400 MERV13
Our Price: $70.90
Retail: $99.99
You Save 29%!

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Aprilaire 45 - 400 Humidifier Panel Filter 2-Pack
(Aprilaire 45)

Never run out of filters during the season with the Aprilaire 45 replacement cool mist humidifier water panel comes in a convenient 2-pack. The Aprilaire humidifier pad is the key component for generating humidity in your Aprilaire 400 humidifier.


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Aprilaire 45 - 400 Humidifier Panel Filter 2-Pack
As Low As: $24.95
Retail: $39.99
You Save 38%!

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GeneralAire 990-13 Evaporator Filter Pad - 7002
(7002)

The Generlaire 900-13 replacement humidifier pad is also known as the General Aire 7002. The 900-13 is manufactured for use in your GeneralAire series humidifier. This GeneralAire evaporator pad will draw water into it, then release fresh evaporatio


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GeneralAire 990-13 Evaporator Filter Pad - 7002
Our Price: $16.90
Retail: $29.95
You Save 44%!

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Air Care 1051 Tabletop Air Purifier Filter
(1051SS)

The Essick Air 1051 is a two stage air cleaner filter for your Bemis air purifier. These air purifiers remove 97% of dust, allergens and bacteria from your homes air. The tabletop air cleaner filter will keep your air purifier working at its best by


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Air Care 1051 Tabletop Air Purifier Filter
As Low As: $14.99
Retail: $23.99
You Save 38%!

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Trion 255649-105 Air Bear HVAC Filter 16x25x5
(255649-105)

The Trion Air Bear Media AC Filter 16x25x5 part number 255649-105 is a genuine Trion Air Bear pleated media filter. The 255649105 can be used in Trion models Air Bear Supreme 1400 and Trion Air Bear 1400.


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Trion 255649-105 Air Bear HVAC Filter 16x25x5
Our Price: $28.95
Retail: $55.00
You Save 47%!

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Aprilaire 10 - Aprilaire 500 Water Panel Filter
(Aprilaire 10)

The Aprilaire 10 replacement humidifier water panel filter is a key component that works to generate the humidity in whole house humidifier systems.


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Aprilaire 10 - Aprilaire 500 Water Panel Filter
As Low As: $15.49
Retail: $20.99
You Save 26%!

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Filters Fast - Air Filters

" Thank you for your expert service when helping me get the proper filters for my old pool and filter system. The new ones are perfect and work very well. All the best! " - Jim, Alamo, CA
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