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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:


Trane Perfect Fit BAYFTFR21M2 FLR06070 Filter-21x27x5
(BAYFTFR21M2A)

The Trane Perfect Fit BAYFTFR21M2 FLR06070 Filter Kit- 21x27x5 features a MERV 8 rating for the reduction of dust, dirt, and various allergens in your air, and the improvement of indoor air quality.


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Trane Perfect Fit BAYFTFR21M2 FLR06070 Filter-21x27x5
As Low As: $44.95
Retail: $59.99
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Lennox HC X6664 MERV 11 Air Filter Replacement
(X6664)

The Lennox HC X6664 MERV 10 Air Filter Replacement is a replacement air filter for the Lennox PCO-12C PureAir air cleaner. This pleated air filter features a MERV 10 rating and can trap airborne particulates down to as small as 0.3 microns.


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Lennox HC X6664 MERV 11 Air Filter Replacement
Our Price: $33.95
Retail: $49.00
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FAPF02 Air Filter, Replacement for FAP02-RS
(FAPF02)

The Filtrete FAPF02 Air Filter is the replacement air cleaning filter for the Filtrete Ultra Clean Air Purifier FAP02-RS, FAP02. This electrostatically charged filter attracts & retains microparticles that can aggravate allergies and ...


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FAPF02 Air Filter, Replacement for FAP02-RS
Our Price: $26.14
Retail: $29.99
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FiltersFast FF 30930 Replacement for Hunter 30930
(30930)

The FiltersFast FF 30930 is the compatible replacement for the Hunter 30930 HEPAtech Purifier Filter.


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FiltersFast FF 30930 Replacement for Hunter 30930
Our Price: $15.90
Retail: $15.99
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FiltersFast FFC162766SGM8 Replacement for Aprilaire SpaceGard 2400 MERV8 - 2-Pack
(FFC162766SGM8)

The FiltersFast Brand Aprilaire SpaceGard 2400 MERV8 2-Pack Air Filter is an economical compatible alternative for the Aprilaire SpaceGard 2400 Air Cleaner Systems requiring a 16x27x6 media filter.


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FiltersFast FFC162766SGM8 Replacement for Aprilaire SpaceGard 2400 MERV8 - 2-Pack
Our Price: $43.99
Retail: $50.00
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Honeywell Enviracaire HC26A 1008 Humidifier Pad
(HC26A 1008)

The Honeywell Enviracaire Elite HC26A 1008 Humidifier Pad replaces the humidifier pad in the Honeywell HE260A,B Bypass Flow-Through Humidifier, HE360A1019, HE360B1009 Powered Flow-Through Humidifier or Aprilaire 560 and 760 humidifiers.


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Honeywell Enviracaire HC26A 1008 Humidifier Pad
As Low As: $13.49
Retail: $15.21
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Lennox X7935 MERV16 Healthy Climate HCF14-16 Filter Replacement
(X7935)

TheLennox X7935 MERV16 Healthy Climate HCF14-16 Filter Replacement is a replacement filter media for the Lennox HCC14-23 Healthy Climate True Fit Cabinet. Measuring approximately 20x20x5, this MERV 16 furnace filter box will trap at least 95%

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Lennox X7935 MERV16 Healthy Climate HCF14-16 Filter Replacement
Our Price: $119.95
Retail: $149.95
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Lennox X0445 MERV 10 PMAC-20C Pleated Furnace Filter Media
(X0445)

This Lennox X0445 MERV 10 PMAC-20C Pleated Furnace Filter Media is a part of the Lennox “Healthy Climate” line of indoor air quality products. This Lennox Healthy Climate Filter is an expandable media air filter.


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Lennox X0445 MERV 10 PMAC-20C Pleated Furnace Filter Media
Our Price: $32.95
Retail: $35.95
You Save 8%!

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BestAir D88 Replacement For Honeywell HC-888 Humidifier Filter
(D88)

The BestAir D88 helps your humidifier run at peak performance by removing the hard water contaminants from your humidifier and preventing them from being released into your air.


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BestAir D88 Replacement For Honeywell HC-888 Humidifier Filter
Our Price: $8.99
Retail: $9.99
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Filtrete Dust & Pollen Furnace Filter (Green)
(Dust and Pollen)

The Filtrete Dust & Pollen Furnace Filter is the right choice if you're looking for an economical upgrade from cheap 1 month furnace filters. The Filtrete "Blue Filter" features electrostatically charged fibers and is ideal for high-velocity..


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Filtrete Dust & Pollen Furnace Filter (Green)
Our Price: $11.99
Retail: $14.99
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Lennox X0444 MERV 10 Pleated Furnace Filter Media PMAC-12C
(X0444)

The Lennox X0444 MERV 10 Pleated Furnace Filter Media is a filter for your HVAC system. This furnace filter media is known as the x0444 and uses a MERV 10 air filter.The MERV 10 rating will provide your home with significant air cleaning capability


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Lennox X0444 MERV 10 Pleated Furnace Filter Media PMAC-12C
Our Price: $36.95
Retail: $39.99
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Carrier EXPXXFIL0016 EZ-FLEX Air Purifier Filter
(EXPXXFIL0016)

The Carrier EXPXXFIL0016 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 will fit many compatible air purifiers includin


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Carrier EXPXXFIL0016 EZ-FLEX Air Purifier Filter
Our Price: $53.98
Retail: $69.99
You Save 23%!

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GeneralAire 1099-20 Evaporator Filter Pad - 7047
(7047)

The GeneralAire 1099-20 Evaporator Filter Pad is a replacement filter for the GeneralAire Legacy Model Humidifiers 1099, 1099L, 1099LH, and 1099R. This evaporator pad measures 14 1/4" wide and 12" in height, and collects mineral deposits from the wa


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GeneralAire 1099-20 Evaporator Filter Pad - 7047
As Low As: $16.99
Retail: $19.99
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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
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FiltersFast DSG201M11FF Replacement for BestAir SGMPR-B - 2-pack
(SGMPR-B)

FiltersFast Replacement For Aprilaire 201 BestAir SGMPR-B 2-pack come pre-assembled and replace AprilAire 201 air filters for use on Space-Gard Models 2200 & 2250 Air Cleaners.


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FiltersFast DSG201M11FF Replacement for BestAir SGMPR-B - 2-pack
Our Price: $39.98
Retail: $49.99
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FiltersFast A10PR R Replacement For Aprilaire 110, 220, 500, 550, 558
(A10PR R)

The FiltersFast A10PR R is the correct replacement filter for Aprilaire Humidifier Models 110, 220, 500, 550, 558.


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FiltersFast A10PR R Replacement For Aprilaire 110, 220, 500, 550, 558
As Low As: $6.99
Retail: $10.99
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Honeywell 50000293-004 Post Filter 12.5x20 2-Pack
(50000293-004)

The Honeywell 50000293-004 Post Filter 12.5x20 2-Pack is a replacement post filter for the 20x25 and 20x12.5 F300E and F50F air cleaners. The Honeywell post filter increases the efficiency of your Honeywell electronic air purifier model and has only


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Honeywell 50000293-004 Post Filter 12.5x20 2-Pack
As Low As: $40.95
Retail: $49.99
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Lennox X8789 PureAir PCO16-28 MERV 16 Filter Genuine Lennox Part
(X8789)

The Lennox X8789 MERV 16 Filter Media Replacement is the correct replacement for any HVAC system that requires a 16" x 26" x 5" filter. This Lennox Healthy Climate filter has an efficiency rating of MERV 16, the highest efficiency rating. The Len

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Lennox X8789 PureAir PCO16-28 MERV 16 Filter Genuine Lennox Part
Our Price: $109.95
Retail: $226.95
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FiltersFast FFC16253TABM8 Trion MERV 8 16x25x3 Filter 3-Pack
(FFC16253TABM8)

The FiltersFast FFC16253TABM8 Trion MERV 8 16x25x3 Filter compatible MERV 8 filter replacement. This Air Bear Cub Filter is also known as part number FFC16253TABM8.


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FiltersFast FFC16253TABM8 Trion MERV 8 16x25x3 Filter 3-Pack
Our Price: $49.99
Retail: $59.99
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FiltersFast FFC16255HONM13 Replacement for Honeywell FC100A1029 - 16x25x5, MERV13
(FFC16255HONM13)

The FiltersFast MERV13 Replaces Honeywell 16x25x5 FC100A1029 is the compatible version of the genuine Honeywell FC100A Series Residential Air Cleaner Filter.


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FiltersFast FFC16255HONM13 Replacement for Honeywell FC100A1029 - 16x25x5, MERV13
Our Price: $75.99
Retail: $90.00
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FiltersFast FFC20205TABM13 Replacement for Trion 20x20x5 Air Bear Filter - MERV 13 2-Pack
(FFC20205TABM13)

The Trion 20x20x5 Air Bear Furnace Filter is the compatible version of the genuine Trion Air Bear Media Filter 20x20x5, 255649-103.


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FiltersFast FFC20205TABM13 Replacement for Trion 20x20x5 Air Bear Filter - MERV 13
Our Price: $65.90

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FiltersFast FFC21275TRNM11 Replacement for Trane Perfect Fit BAYFTFR21M 21x27x5 (2 Pack)
(FF-BAYFTFR21M)

These MERV 11 FiltersFast Brand compatible Furnace Filters are replacement filters for Trane Perfect Fit Air Filters. These FiltersFast Air Filters replace Trane part number BAYFTFR21M or FLR06070 , which is used in several Trane Air Cleaner models

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FiltersFast FFC21275TRNM11 Replacement for Trane Perfect Fit BAYFTFR21M 21x27x5 (2 Pack)
Our Price: $90.95
Retail: $109.95
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3M Filtrete Home Odor AC Filter - 20 x 25 x 1
(Filtrete-Odor-20251)

The 3M Filtrete Home Odor AC Filter - 20 x 25 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 pet,


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3M Filtrete Home Odor AC Filter - 20 x 25 x 1
Our Price: $21.61
Retail: $29.99
You Save 28%!

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Trion Air Bear 259112-105 Cub Filter 16x25x5 MERV 11
(259112-105)

This Trion Air Bear 259112-105 Filter is the correct replacement for the following air cleaning system: Trion Air Bear Duct Mount Media Air Cleaner


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Trion Air Bear 259112-105 Cub Filter 16x25x5 MERV 11
Our Price: $30.95

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Trion Air Bear 259112-103 Supreme Filter 20x20x5 MERV11 4-PacK
(259112-103 4pack)

The 259112-103 is the correct filter replacement for the following Trion Air Bear and Air Bear Supreme air cleaning systems.

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Trion Air Bear 259112-103 Supreme Filter 20x20x5 MERV11 4-PacK
Our Price: $111.99
Retail: $189.99
You Save 41%!

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