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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:


BestAir 24000 R Replacement for Honeywell 24000
(24000)

The BestAir 24000 R HEPA Air Filter is the compatible replacement for the Honeywell 24000 HEPA Air Filter.


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BestAir 24000 R Replacement for Honeywell 24000
Our Price: $56.99
Retail: $69.99
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FiltersFast FF 30925 Replacement for Hunter 30925
(30925)

Keep your Hunter Air Purifier purring with the convenient and affordable FiltersFast FF 30925 HEPA Air Purifier Filter.


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FiltersFast FF 30925 Replacement for Hunter 30925
Our Price: $17.99
Retail: $24.99
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FiltersFast DSG401M11FF Replacement For Aprilaire #401 Filter
(SG4PR-B)

The Space-Gard MERV 11 Compatible Media Filter 2-Pack is a two pack of compatible replacement air filters for the Aprilaire Model 2400 Air Cleaner. Model #401.


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FiltersFast DSG401M11FF Replacement For Aprilaire #401 Filter
Our Price: $51.98
Retail: $59.99
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Honeywell FC40R1169 14x30 Return Grille Air Filter
(FC40R1169)

The Honeywell FC40R1169 14x30 Return Grille Air Filter is a replacement air filter that fits most return filter grilles. This return air filter grille measures 14" x 30" and features a MERV 10 rating for the reduction of airborne contaminants. The H


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Honeywell FC40R1169 14x30 Return Grille Air Filter
Our Price: $34.95
Retail: $39.99
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FiltersFast Brand Trion 16x25x5 Air Bear MERV13 2-Pack
(FFC16255TABM13)

The FiltersFast Brand Trion 16x25x5 Air Bear MERV13 2-Pack Furnace Filter is the compatible version of the genuine Trion Air Bear Media AC Filter 16x25x5, 255649-105.

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FiltersFast Brand Trion 16x25x5 Air Bear MERV13 2-Pack
Our Price: $94.00
Retail: $100.00
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Lennox X4138 HEPA 40-60 Carbon PreFilter
(X4138)

This Lennox X4138 HEPA 40-60 Carbon PreFilter is a part of the Lennox “Healthy Climate” line of indoor air quality products. This Lennox HEPA 60 filter has an estimated life of 6 months.


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Lennox X4138 HEPA 40-60 Carbon PreFilter
Our Price: $31.95
Retail: $38.51
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Filtrete Odor Reduction Air Filter - 14 x 24 x 1
(Filtrete-Odor-14241)

The Filtrete Odor Reduction Air Filter - 14 x 24 x 1 is constructed with activated carbon to remove common odors from your home, including pet, smoke, cooking, mildew, and cleaning chemicals. In addition to creating a more breathable atmosphere, thi


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Filtrete Odor Reduction Air Filter - 14 x 24 x 1
Our Price: $21.66
Retail: $179.99
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FiltersFast A35PR Replacement for Lennox WB2-17 and WB2-18 Filter
(WB2-17 WB2-18)

The FilterFast Brand Replacement for Lennox WB2-17 and WB2-18 Humidifier Metal Water Panel Filter is the correct compatible replacement for the following models of humidifiers: Lennox WB2-17 Lennox WB2-18


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FiltersFast A35PR Replacement for Lennox WB2-17 and WB2-18 Filter
As Low As: $7.95
Retail: $9.99
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FiltersFast ROHAPF60M Replacement For Holmes HAPF60 2-Pack 2-Pack
(ROHAPF60M)

The Holmes HAPF60 Air Purifier Carbon PreFilter-2 Pack is a pack of replacement carbon pre-filters for several models of air cleaners from Holmes, Bionaire, and GE. This two pack of air purifier filters reduces the presence of odors within the home


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FiltersFast ROHAPF60M Replacement For Holmes HAPF60 2-Pack
Our Price: $19.90

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FiltersFast Brand Trion 16x25x3 Air Bear MERV13 3-Pack
(FFC16253TABM13)

The FiltersFast Brand Trion 16x25x3 Air Bear MERV13 3-Pack Filter is a compatible version of the genuine Trion Air Bear Media AC Filter 16x25x3, 255649-101.


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FiltersFast Brand Trion 16x25x3 Air Bear MERV13 3-Pack
Our Price: $84.00
Retail: $100.00
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FiltersFast A10PR R Replacement for BAYPAD01A1010A
(BAYPAD01A1010A R)

The American Standard BAYPAD01A1010A is the compatible replacement for the following humidifier: American Standard HUMD200A Humidifier American Standard HUMD200T Humidifier


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FiltersFast A10PR R Replacement for BAYPAD01A1010A
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Lennox X0584 MERV 11 Pleated Media Filter BMAC-14CE
(X0584)

The Lennox X0584 MERV 11 Pleated Media Filter is a pleated air filter that replaces the filter media in the Lennox BMAC-14CE box media air cleaner and also fits inside Lennox the EAC012 and EAC0-14 model air cleaner cabinets in place of its electron


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Lennox X0584 MERV 11 Pleated Media Filter BMAC-14CE
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Retail: $81.70
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Lennox X8347 MERV 16 Filter Maintenance Kit for PCO-12C
(X8347)

The Lennox X8347 MERV 16 Filter Maintenance Kit for PCO-12C is the correct replacement for the following air cleaner: Lennox PureAir Healthy Climate PCO-12C Air Purification System

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Lennox X8347 MERV 16 Filter Maintenance Kit for PCO-12C
Our Price: $249.95
Retail: $326.95
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Lennox X2660 Humidifier Water Panel Filter
(X2660)

The Lennox X2660 Humidifier Water Panel Filter is a replacement water panel filter for several Lennox Healthy Climate model humidifiers. This evaporator pad is also compatible with several humidifier models from Aprilaire. This humidifier filter rep


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Lennox X2660 Humidifier Water Panel Filter
Our Price: $14.99
Retail: $61.45
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FiltersFast A35WPR Replacement For Space-Gard #35
(Space-Gard 35 R)

The Space-Gard #35 Humidifier Water Panel Evaporator Space-Gard/Aprilaire furnace humidifier replacement unit comes with honeycomb filtration. The evaporator pad should be replaced once every 6 months or more often in hard water areas.


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FiltersFast A35WPR Replacement For Space-Gard #35
As Low As: $11.45
Retail: $14.99
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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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Lennox Genuine 92X10 HEPA Filter Replacement for HEPA-40, HEPA-60
(92X10)

This Lennox Genuine 92X10 HEPA Filter Replacement for HEPA-40, HEPA-60 is designed to capture 99.97% of particulates down to 0.3 micron that pass through it. The Lennox Healthy Climate filter should be replaced every 2-5 years.

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Lennox Genuine 92X10 HEPA Filter Replacement for HEPA-40, HEPA-60
Our Price: $217.95
Retail: $284.96
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Honeywell TRN2321T1 Replacement for Trane BAYFTAH23M, 23.5x21x5 Perfect Fit - 3-Pack
(TRN2321T1)

These three 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 f

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Honeywell TRN2321T1 Replacement for Trane BAYFTAH23M, 23.5x21x5 Perfect Fit - 3-Pack
Our Price: $149.00
Retail: $160.00
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Honeywell 203369 Pre-Filter 12.5 x 20 x 11/32 2-Pack 2-Pack
(203369)

The Honeywell 203369 Pre-Filter 12.5x20x.375 2-Pack is a replacement pre-filter for the Honeywell model F50 and F300 air cleaners. This Honeywell air filter traps larger particles in your air to help improve your overall indoor air quality and incre


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Honeywell 203369 Pre-Filter 12.5 x 20 x 11/32 2-Pack
Our Price: $47.32

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FilterFast Trane 21.5x21x5 Perfect Fit BAYFTAH21M Merv 13 2 Pack
(FFC215215TRNM13)

The FilterFast Brand Trane 21.5x21x5 Perfect Fit Filter BAYFTAH21M, FLR06072, BAYFTAH21M2 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 Merv 13 2 Pack
Our Price: $69.95
Retail: $140.00
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FiltersFast A35PR Replacement for SPACE-GARD 35
(SPACE-GARD 35 1R)

The SPACE-GARD 35 Humidifier Metal Water Panel Filter is the correct compatible replacement for the following models of Space-Gard/Aprilaire furnace humidifiers: 350 360 560 560A 568 600 700 760 760A 768 This Space-Gard humidifier wat


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FiltersFast A35PR Replacement for SPACE-GARD 35
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FiltersFast 1" Air Filters MERV 11 Replacement for Aerostar 1" MERV 11 6-Pack
(FFM11 6pk AS)

The FiltersFast 1" MERV 11 Pleated Air Filters 6-Pack is the compatible replacement for the Aerostar 1" MERV 11 Pleated Air Filters.


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FiltersFast 1" Air Filters MERV 11 Replacement for Aerostar 1" MERV 11 6-Pack
Our Price: $55.50
Retail: $77.94
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Trion Air Bear 447380-010 Right Angle Media Air Cleaner
(447380-010)

The Trion Air Bear Right Angle Media Air Cleaner, part number 447380-002, provides a clean and controlled indoor air environment in your home. Ideal for installations that normally require a 90 degree duct adaptor.

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Trion Air Bear 447380-010 Right Angle Media Air Cleaner
Our Price: $123.83
Retail: $199.99
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Honeywell HFC40R1011 Return Grille Filter 20"x25"
(HFC40R1011)

The Honeywell HFC40R1011 20"x25" Return Air Grille Filter is a high efficiency replacement air filter for return grille air filtration applications. Honeywell replacement filters efficiently capture harmful airborne particles such as dust, pet dande


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Honeywell HFC40R1011 Return Grille Filter 20"x25"
Our Price: $35.99
Retail: $49.99
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FiltersFast A12PR Replacement for Aprilaire 12
(A12PR)

The AprilAir 440 Humidifier Water Panel Evaporator Filter is a heavy-duty metal water panel pad for several Aprilaire, Chippewa and Walton humidifier models, and is also referred to as part number A12PR.


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FiltersFast A12PR Replacement for Aprilaire 12
As Low As: $10.95
Retail: $14.99
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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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