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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:


General Aire 20x20 MERV 11 Filter Media GA100A11
(4354)

The General Air GA100A11 20x20 MERV 10 Filter Media is the replacement filter for Honeywell F25A, F35F, F100F & F200E Media Air Cleaners; Honeywell F100B2024, F100F1020, F100F2036 & F150E1018 Air Cleaners.


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General Aire 20x20 MERV 11 Filter Media GA100A11
Our Price: $38.99
Retail: $39.99
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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: $17.99
Retail: $19.99
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Carrier 324897-761 Humidifier Water Filter Pad
(Carrier 324897-761)

The Carrier 324897-761 Humidifier Water Filter Pad is a replacement humidifier water filter pad for several models of humidifiers from Carrier, Bryant, Totaline, and Day and Night. This Carrier wick filter utilizes honeycomb filtration to trap miner


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Carrier 324897-761 Humidifier Water Filter Pad
Our Price: $24.95
Retail: $29.95
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Honeywell TRN2621T1 Replacement for Trane BAYFTAH26M, 26x21x5 Perfect Fit - 3-Pack
(TRN2621T1)

These 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 filters

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In stock! Ships in 1 business day.
Honeywell TRN2621T1 Replacement for Trane BAYFTAH26M, 26x21x5 Perfect Fit - 3-Pack
Our Price: $141.50
Retail: $150.00
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Carrier Bryant 318518-762 Humidifier Filter Replacement
(318518-762)

The Carrier 318518-762 Humidifier Filter Replacement is a replacement humidifier filter for several models of humidifiers from Bryant/Carrier. This whole house humidifier filter is made from high quality material in order to provide you with higher


In stock! Ships in 1 business day.
Carrier Bryant 318518-762 Humidifier Filter Replacement
Our Price: $39.99
Retail: $49.99
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Trion 255649-101 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.

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Trion 255649-101 Air Bear Media AC Filter 16x25x3 6-Pack
Our Price: $100.95
Retail: $132.00
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FiltersFast A10PR R Replacement for Bryant P1101045
(Bryant P1101045 R)

The Bryant P1101045 Humidifier Water Panel Filter is a replacement evaporator pad for the Bryant HUMBBSBP2212-A and HUMBBSBP2272-A humidifier models. This humidifier filter measures approximately 9.5" x 9.75" and utilizes honeycomb filtration to tra


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FiltersFast A10PR R Replacement for Bryant P1101045
As Low As: $6.99
Retail: $10.99
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Filtrete Home Odor Furnace Air Filter- 20 x 20 x 1
(Filtrete-Odor-20201)

The Filtrete Home Odor Furnace Air Filter- 20 x 20 x 1 features activated carbon technology along with electrostatically charged fibers to provide high performance air filtration in your home. This Filtrete air filter can remove common odors such as


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Filtrete Home Odor Furnace Air Filter- 20 x 20 x 1
Our Price: $21.61
Retail: $29.99
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FiltersFast Brand Trane 24x26x5 Perfect Fit BAYFTFR24M
(FFC24265TRNM8)

The FiltersFast Brand Trane 24x26x5 Perfect Fit BAYFTFR24M Filter is the compatible alternative of the genuine OEM 24x26x5 Trane Perfect Fit BAYFTFR24M Filter.


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FiltersFast Brand Trane 24x26x5 Perfect Fit BAYFTFR24M
Our Price: $50.95
Retail: $70.00
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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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Lennox Genuine Metal Mesh Insert 75X66 Fits PureAir Model PCO-2OC
(75X66)

The Lennox 75X66 Metal Mesh Filter is the correct replacement for the following air cleaner: Lennox Pureair PCO-2OC

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Lennox Genuine Metal Mesh Insert 75X66 Fits PureAir Model PCO-2OC
Our Price: $99.95
Retail: $199.99
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Aprilaire 4897 Conversion Frame for Model 5000
(4897)

The Aprilaire 4897 Conversion Frame upgrades your Honeywell, Trion, Carrier, General, or Lennox brand media style air cleaner filters to use Aprilaire replacements.


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Aprilaire 4897 Conversion Frame for Model 5000
Our Price: $7.95
Retail: $19.99
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FiltersFast A35WPR Replacement For Lennox WB2-17 WB2-18
(WB2-17 WB2-18 R)

The Lennox WB2-17 WB2-18 Humidifier Water Panel Filter will help keep your humidifier running at its best. This humidifier panel measure 10" x 13 1/4" x 1.5" inches and the honeycomb design will trap mineral pollutants keeping them out of your humid


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FiltersFast A35WPR Replacement For Lennox WB2-17 WB2-18
As Low As: $11.45
Retail: $14.99
You Save 24%!

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FiltersFast A10PR R Replacement for Honeywell HC22
(Honeywell HC22 R)

The Honeywell HC22 Humidifier Water Panel Filter is a replacement humidifier water panel filter that is compatible with several Honeywell furnace humidifier models. This evaporator pad measures approximately 9.5" x 10" x 1.5" and traps mineral pollu


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FiltersFast A10PR R Replacement for Honeywell HC22
As Low As: $6.99
Retail: $10.99
You Save 36%!

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General Aire 20x25 MERV11 Filter Media GA100A37
(4356)

The GeneralAire GA100A37 MERV10 Filter Media measures 20"x25x4" approx., and is the correct replacement filter for Source 1 S1 MAC 10202505, Trion Air Bear Supreme 2000, Skuttle DBO-0025-020, Ultravation 90-007 & Honeywell FC100A1037 Air Cleaners.


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General Aire 20x25 MERV11 Filter Media GA100A37
Our Price: $31.99
Retail: $39.99
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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
You Save 4%!

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Honeywell HC22E 1003 Enviracaire Humidifier Filter
(HC22E 1003)

The Honeywell Enviracaire Elite HC22E 1003 Humidifier Pad fits on Honeywell HE220, and HE225 Bypass Flow-Through Humidifiers and Aprilaire 550 Humidifier. Genuine Honeywell part.


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Honeywell HC22E 1003 Enviracaire Humidifier Filter
Our Price: $29.99

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FiltersFast 23500 R Replacement for Honeywell 23500
(23500)

The Honeywell 23500 Replacement HEPA Filter fits Honeywell Enviracaire Air Purifiers models 13530, 13531, 13532, 13533 (300i), 50200, 50201, and 52000 and Sears Kenmore models 83165 and 83331. Genuine Honeywell part.


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FiltersFast 23500 R Replacement for Honeywell 23500
Our Price: $61.25
Retail: $64.99
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GeneralAire F1020 MERV 13 Filter Media Replacement
(4562)

The General Air F1020 MERV 13 Filter Media measures 20"x25"x4" (approx.), and is correct filter for General Aire TERSus2000 Air Purification Systems.


Special Order. Ships in 7 days.
GeneralAire F1020 MERV 13 Filter Media Replacement
Our Price: $63.91
Retail: $69.99
You Save 9%!

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FiltersFast Replacement For Kenmore 14909 Humidifier Filters 2-Pack
(E2R R)

This is the FiltersFast compatible replacement for the Kenmore 14909 Humidifier Filter.


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FiltersFast Replacement For Kenmore 14909 Humidifier Filters 2-Pack
As Low As: $12.95
Retail: $22.99
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Honeywell 209989 Air Cleaner Pre-Filter - 16x20 2-Pack
(209989)

The Honeywell 209989 Air Cleaner Pre-Filter - 16x20 includes two 16" x 10" pre-filters for Honeywell 16" x 20" air cleaner models. This Honeywell pre-filter trap larger particulates in your air to extend the life of your air filter. This air cleaner


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Honeywell 209989 Air Cleaner Pre-Filter - 16x20
Our Price: $65.20

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Trion Air Bear Supreme 2000 Air Cleaner Merv 11
(455602-525)

The Trion Air Bear Supreme 2000 Air Cleaner Merv 11 is a whole house air cleaner that filters various airborne particles. With this Trion Air Bear cleaner you will be able to capture and hold pollutants from the air inside the filter, which will all

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In Stock! Ships in 3 to 4 business days.
Trion Air Bear Supreme 2000 Air Cleaner Merv 11
Our Price: $90.95
Retail: $199.99
You Save 55%!

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FiltersFast FFC16253TAB Replacement for Trion 255649-101 3-Pack
(FFC16253TAB)

Replace your Trion Air Bear 255649-101 16x25x3 air filter with this FiltersFast compatible AC filter, which features a MERV 11 rating, an upgrade from the MERV 8 Trion Air Bear.


In Stock! Ships in 1 to 2 business days.
FiltersFast FFC16253TAB Replacement for Trion 255649-101 3-Pack
Our Price: $66.00

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FiltersFast Brand Trane 24.5x27x5 BAYFTFR24M2 2 Pack
(FFC245275TRN)

The FiltersFast Brand Trane 24.5x27x5 BAYFTFR24M2 2 Pack compatible air filter captures airborne pollutants that can cause a negative impact on respiratory health


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FiltersFast Brand Trane 24.5x27x5 BAYFTFR24M2 2 Pack
Our Price: $54.95
Retail: $59.95
You Save 8%!

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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


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Bionaire 611D Replacement For Bionaire 611DCS Compatible Dual Air Filter
Our Price: $11.99
Retail: $14.99
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