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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 BAYFTAH21M2, BAYFTAH21M, FLR06072 Air Filter 21.5x21x5
(BAYFTAH21M2)

The Trane BAYFTAH21M2, BAYFTAH21M, FLR06072 Air Filter 21.5x21x5 21.5x21x5 fits the TFM215B0AH0 Perfect Fit High Efficiency Air Cleaner. This Trane Perfect Fit filter has a MERV 8 rating that helps purify your air and improve overall indoor air.


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Trane BAYFTAH21M2, BAYFTAH21M, FLR06072 Air Filter 21.5x21x5
As Low As: $56.95
Retail: $65.99
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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: $139.95
Retail: $149.99
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FiltersFast FFC26215TRN Replacement for Trane Perfect Fit BAYFTAH26M 21x26x5 2pk
(FFC26215TRN)

These FiltersFast MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These FiltersFast Air Filters specifically replace Trane part number BAYFTAH26M, which is a 21x26x5 Air Filter used in several Trane Air Cleaner

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FiltersFast FFC26215TRN Replacement for Trane Perfect Fit BAYFTAH26M 21x26x5 2pk
Our Price: $79.95
Retail: $199.99
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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: $30.99
Retail: $35.99
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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: $55.95
Retail: $69.99
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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
As Low As: $39.95
Retail: $49.99
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Lennox X0587 MERV 10 Pleated Media Filter
(X0587)

This Lennox X0587 MERV 10 Pleated Media Filter is a MERV 10 replacement furnace filter. This pleated furnace filter offers quality filtration of impurities and pollutants in the air.


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Lennox X0587 MERV 10 Pleated Media Filter
As Low As: $43.45
Retail: $59.99
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FiltersFast HAPF30 Replacement for Holmes HAPF30AT-U4
(HAPF30)

The Holmes HAPF30 Replacement HEPA filter fits Holmes Air Purifier Models HAP240, HAP242, HAP243, HAP2400, HAP2404, HAP260, HAP2604, HAP412, HAP413, HAP422, HAP433 and Bionaire BAP242, BAP422, BAP815, BAP825, and BAP826.


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FiltersFast HAPF30 Replacement for Holmes HAPF30AT-U4
Our Price: $15.95
Retail: $29.99
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FiltersFast FFC16255TAB Trion Compatible 16x25x5, 2-Pack
(FFC16255TAB)

The FiltersFast Compatible 16x25x5 MERV 11 Air Filter can be used as an upgrade for Trion Air Bear part number 255649-105. Upgrade your Trion Air Bear Filter today!


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FiltersFast FFC16255TAB Trion Compatible 16x25x5, 2-Pack
Our Price: $49.95
Retail: $69.99
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BestAir A35WPR Replacement For Trane BAYPAD02A1310A
(T BAYPAD02A1310A R)

This FiltersFast Brand Trane BAYPAD02A1310A Humidifier Panel Filter offers Honeycomb filtration to trap mineral impurities found in water. You should replace your Trane filter twice a season or more often in hard water areas.


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BestAir A35WPR Replacement For Trane BAYPAD02A1310A
As Low As: $12.45
Retail: $15.99
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FiltersFast 4-inch MERV 8 Pleated Air Filters 3-Pack
(FFM8PLEAT 4)

The FiltersFast 4-inch MERV 8 4"Air Filters 3-pack is compatible with: Aprilaire Space-Gard Trion Air Bear Honeywell and other top name brand air conditioning filters. Usable in residential, commercial, and industrial applications, the


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FiltersFast 4-inch MERV 8 Pleated Air Filters 3-Pack
Our Price: $55.95
Retail: $59.99
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BestAir R14ALLM Universal Cut to Fit Carbon Pre Filter-2-Pack
(R14ALLM)

The Universal Cut to Fit Carbon Pre Filter-2 Pack is a replacement pack of two carbon pre-filters that fit a variety of air purifiers and air cleaners, including models from Bionaire, DeLonghi, Duracraft, Holmes, Honeywell Enviracare, Hunter.


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BestAir R14ALLM Universal Cut to Fit Carbon Pre Filter-2-Pack
Our Price: $19.95
Retail: $24.99
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Honeywell HAC-700 Humidifier Filter B 2-Pack
(HAC-700)

This Honeywell HAC-700 humidifier filter eliminates minerals and pollutants from water and helps keep your humidifier clean and pure. This Honeywell humidifier filter has a ProTec AntiMicrobial Treatment, which helps to prevent bacteria.


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Honeywell HAC-700 Humidifier Filter B 2-Pack
As Low As: $15.95
Retail: $19.99
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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: $40.98
Retail: $49.99
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Lennox Y6606 PCO3-14-16 Air Filtration Filter PureAir 100908-12
(Y6606)

The Lennox Y6606 PCO3-14-16 PureAir 100908-12 Healthy Climate PureAir Air Purification System features a Precision Pleat MERV 16 filter that traps particles down to an amazing 0.01 micron.

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Lennox Y6606 PCO3-14-16 Air Filtration Filter PureAir 100908-12
Our Price: $99.95
Retail: $126.99
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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: $24.95
Retail: $29.99
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Lennox X8310 MERV 11 Expandable Filter Replacement
(X8310)

The Lennox x8310 expandable MERV 11 filter is for use in your homes filter system. Also known as the healthy climate furnace filter, the X8310 measures 20x25x5 inches. This furnace filter media will protect your home from particles


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Lennox X8310 MERV 11 Expandable Filter Replacement
Our Price: $44.95
Retail: $49.99
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Top Tech TT-FM-1620 TechPure 16x20x4 MERV 11 Filter
(TT-FM-1620)

The TopTech TechPure TT-FM-1620 16" x 20" x 4" MERV 11 Filter removes many allergens, dust, pollen and other airborne pollutants.


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Top Tech TT-FM-1620 TechPure 16x20x4 MERV 11 Filter
Our Price: $34.95
Retail: $39.99
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FiltersFast FFC20205TABM13 Trion 20x20x5 Air Bear 255649-103
(FFC20205TABM13)

The FiltersFast FFC20205TABM13 Trion 20x20x5 Air Bear 255649-103 Furnace Filter is the compatible version of the genuine Trion Air Bear Media Filter 20x20x5, 255649-103.


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FiltersFast FFC20205TABM13 Trion 20x20x5 Air Bear 255649-103
Our Price: $59.95
Retail: $79.99
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FiltersFast A10PR R Replacement for American Standard 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 American Standard BAYPAD01A1010A
As Low As: $8.95
Retail: $19.99
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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: $39.95
Retail: $48.99
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Honeywell 203371 Air Cleaner Pre-Filter 2-PACK
(203371)

The Honeywell 203371 is the correct replacement for the following air cleaners: Honeywell F300E1019 Honeywell F58A1001 Honeywell F58E1002 Honeywell F50F1073 Honeywell F58F1018 Honeywell F50E1158 Honeywell F50E1174 Honeywell F50E1281 Honey


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Honeywell 203371 Air Cleaner Pre-Filter 2-PACK
Our Price: $69.95
Retail: $79.99
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Lennox X1152 MERV 11 Pleated Media Furnace Filter MF1-20
(X1152)

The Lennox X1152 MERV 11 Pleated Media Furnace Filter is the replacement filter cartridge for several Lennox, Trion Air Bear, other air cleaner systems requiring 20x25x5 furnace filters.


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Lennox X1152 MERV 11 Pleated Media Furnace Filter MF1-20
As Low As: $33.95
Retail: $49.99
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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: $8.95
Retail: $19.99
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TopTech TT-FM-2020 TechPure 20x20x4 MERV 11 Filter
(TT-FM-2020)

The TopTech TT-FM-2020 TechPure 20x20x4 MERV 11 Filter removes many allergens, dust, pollen and other airborne pollutants.


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TopTech TT-FM-2020 TechPure 20x20x4 MERV 11 Filter
Our Price: $33.95
Retail: $39.99
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