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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 FFC20255HONM8 Replacement for Honeywell 20x25x5 FC100A1037 2-Pack
(FFC20255HONM8)

The FilterFast Brand Honeywell 20x25x5 FC100A1037 2-Pack is the compatible version of the OEM Honeywell 20x25x5 Air Filter FC100A1037.


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FiltersFast FFC20255HONM8 Replacement for Honeywell 20x25x5 FC100A1037 2-Pack
Our Price: $40.99
Retail: $59.99
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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: $54.99
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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: $12.99
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Lennox X8311 MERV 10 Expandable Filter Replacement for HCXF14
(X8311)

The Lennox X8311 is the correct filter for the following air cleaner: Lennox Healthy Climate HCXF14 Air Filtration System


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Lennox X8311 MERV 10 Expandable Filter Replacement for HCXF14
Our Price: $30.95
Retail: $38.99
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Lennox X1152 MERV 11 Pleated Media Furnace Filter MF1-20
(X1152)

The Lennox X1152 MERV 10 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: $27.95
Retail: $39.99
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FiltersFast FFC24265TRN Replacement for Trane PerfectFit BAYFTFR24M 24.5x27x5 2-Pack
(FFC24265TRN)

These FiltersFast Brand Trane Perfect Fit BAYFTFR24M 24.5x27x5 MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These FiltersFast Air Filters specifically replace Trane part number BAYFTFR24M, which is a 24.5x27x5


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FiltersFast FFC24265TRN Replacement for Trane PerfectFit BAYFTFR24M 24.5x27x5 2-Pack
Our Price: $70.95
Retail: $110.99
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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 for just a few extra dollars!


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FiltersFast FFC16255TAB Trion Compatible 16x25x5, 2-Pack
Our Price: $56.00
Retail: $82.99
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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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Lennox X8790 PCO14-23 MERV 16 Air Filter Replacement
(X8790)

The Lennox X8790 MERV 16 Air Filter Replacement is a replacement air filter for the Lennox PCO14-23 PureAir Air Filtration System. This furnace filter measures approximately 20" x 21" x 5" and features a MERV 16 rating. A higher MERV rating results

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Lennox X8790 PCO14-23 MERV 16 Air Filter Replacement
Our Price: $105.95
Retail: $228.99
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FiltersFast FFC26215TRNM13 Replacement for Trane BAYFTAH26M, 21x26x5 Perfect Fit - MERV13, 2-Pack
(FFC26215TRNM13)

If you are looking for an economical compatible version of the genuine Trane/American Standard BAYFTAH26M Perfect Fit Air Filter, try this FiltersFast Trane 21x26x5 Perfect Fit BAYFTAH26M M13 with a MERV 13 energy efficiency rating.

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FiltersFast FFC26215TRNM13 Replacement for Trane BAYFTAH26M, 21x26x5 Perfect Fit - MERV13, 2-Pack
Our Price: $111.00
Retail: $139.99
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BestAir A35PR Replacement for Carrier P1103545
(Carrier P1103545 1R)

The BestAir A35PR evaporator pad has a honeycomb-shaped filtration media that is designed to trap mineral pollutants and contaminants found in your water.


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BestAir A35PR Replacement for Carrier P1103545
As Low As: $7.95
Retail: $11.99
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Honeywell FC40R1037 12x24 Return Air Grille Filter
(FC40R1037)

The Honeywell FC40R1037 Return Aire Grille Filter is a high efficiency, replacement for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 12x24x4. Genuine Honeywell Part.


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Honeywell FC40R1037 12x24 Return Air Grille Filter
Our Price: $31.99
Retail: $44.99
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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: $41.99
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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: $43.99
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Trion 259112-101 Air Bear Cub Filter 16x25x3 MERV 11 - 6-Pack
(259112-101 6Pack)

The Trion Air Bear Cub Filter 16x25x3 MERV 11 6-Pack can be used Trion AirBear Air Cleaners and all air cleaners that need 16"x25"x3" air filters. These Trion filters are an economical upgrade from simple poly-pleated or fiberglass filters.

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Trion 259112-101 Air Bear Cub Filter 16x25x3 MERV 11 - 6-Pack
Our Price: $91.99
Retail: $109.99
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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: $30.95
Retail: $39.99
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FiltersFast FFC175275TRN M13 Replacement for Trane Perfect Fit 17.5x27x5 MERV13 - 2-Pack
(FFC175275TRN M13)

These FiltersFast Brand MERV 13 Furnace Filters replace Trane Perfect Fit Air Filters with the part number BAYFTFR17M or FLR06069, which are 17.5x27x5 air filters used in several Trane Air Cleaner models.

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FiltersFast FFC175275TRN M13 Replacement for Trane Perfect Fit 17.5x27x5 MERV13 - 2-Pack
Our Price: $90.99
Retail: $116.99
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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: $90.95
Retail: $106.99
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TopTech TT-FM-1625 Techpure 16x25x4 MERV 11 Filter
(TT-FM-1625)

The TopTech TT-FM-1625 Techpure 16x25x4 MERV 11 Filter removes many allergens, dust, pollen and other airborne pollutants.


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TopTech TT-FM-1625 Techpure 16x25x4 MERV 11 Filter
Our Price: $33.95
Retail: $45.99
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Trion Air Bear Media AC Filter 20x20x5 4-Pack
(255649-103 4pack)

The Trion Air Bear Media AC Filter 20x20x5 part number 255649-103 is a genuine Trion Air Bear pleated media A/C filter. The 255649103 can be used in Trion 20" x 20" Models including model number 455604-019. Replaces 229990-103 and 248713-103.


Out of stock
Trion Air Bear Media AC Filter 20x20x5 4-Pack
Our Price: $79.00
Retail: $99.99
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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.


Out of stock
BestAir D88 Replacement For Honeywell HC-888 Humidifier Filter
Our Price: $8.99
Retail: $10.99
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BestAir A35PR Replacement for Trane BAYPAD02A1310A
(T BAYPAD02A1310A 1R)

The BestAir A35PR is the correct replacement metal humidifier pad for the Trane BAYPAD02A1310A, and has approximate dimensions of 10"x13-1/4"x1-1/2".


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BestAir A35PR Replacement for Trane BAYPAD02A1310A
As Low As: $7.95
Retail: $11.99
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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: $18.99
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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: $21.61
Retail: $29.99
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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


Out of stock
Trion Air Bear 259112-105 Cub Filter 16x25x5 MERV 11
Our Price: $30.95
Retail: $36.99
You Save 16%!

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Filters Fast - Air Filters

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