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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.


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Air Filters product list


FiltersFast Trane Perfect Fit BAYFTAH26M 21x26x5 2pk
(FFC26215TRN)

These FiltersFast MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These Filters Fast 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 Trane Perfect Fit BAYFTAH26M 21x26x5 2pk
Our Price: $94.00
Retail: $199.99
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FiltersFast Replacement For Trion MERV 8 Filter 20x20x5 2-Pack
(FFC20205TABM8)

The Trion FFC20205TABM8 20x20x5 MERV 8 Compatible Air Bear Furnace Filter replacement is an economical alternative for the OEM - Trion 255649-103 Air Bear Media Filter 20x20x5.


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FiltersFast Replacement For Trion MERV 8 Filter 20x20x5 2-Pack
Our Price: $42.99
Retail: $50.00
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Lennox X6667 MERV 11 Air Filter Media Replacement
(X6667)

The Lennox X6667 MERV 11 Air Filter Media Replacement is a replacement air filter for Lennox Healthy Climate PureAir PCO-20 air cleaners. This box media utilizes a MERV 11 pleated filter that captures particles as small as 0.3 microns in size.


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Lennox X6667 MERV 11 Air Filter Media Replacement
Our Price: $35.95
Retail: $39.99
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Skuttle Air Cleaner Filter Replacement for DB2520
(448-002)

The Skuttle Air Cleaner Filter Replacement for DB2520 is a replacement air filter for the Skuttle DB-25-20 Air Cleaner. The deep-pleated, MERV 8 filter media of this replacement filter provides high-volume service that traps airborne particles to pr


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Skuttle Air Cleaner Filter Replacement for DB2520
Our Price: $31.95
Retail: $39.95
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3-Pack Trion Air Bear Cub Filter 16x25x5 MERV 11
(259112-105 3pack)

The 3-Pack Trion Air Bear Cub Filter 16x25x5 MERV 11 is a replacement filter pack for your Air Bear whole house air cleaner. These Trion Air Bear Cub filters trap common air pollutants inside of the filter, which help allow air to flow through the s


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3-Pack Trion Air Bear Cub Filter 16x25x5 MERV 11
Our Price: $68.99
Retail: $84.99
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Carrier GAPCCCAR2020 Air Purifier Filter
(GAPCCCAR2020)

The Carrier GAPCCCAR2020 Air Purifier Filter is a genuine OEM factory replacement air filter for the Carrier Infinity Air Purifier, Bryant Perfect Air Purifier, as well as other compatible air purifiers made by BDP, Payne, Day and Night Infinity, an


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Carrier GAPCCCAR2020 Air Purifier Filter
Our Price: $92.09
Retail: $94.59
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Holmes HWF65 Replacement Humidifier Filter
(HWF65)

Holmes HWF65 Humidifier Filter features Microban technology and is designed for use with Humidifier Models: HM1800, HM1840, HM1845, HM1850, HM1851, HM1855, HM1865, HM1888, HM1889, HM1895, HM2059, HM2060, HM2060W, HM3000, HM3800, HM3850, and more..


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Holmes HWF65 Replacement Humidifier Filter
Our Price: $16.99
Retail: $20.00
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FiltersFast Trane Perfect Fit BAYFTAH21M 21.5x21x5 2pk
(FFC215215TRN)

These MERV 11 Furnace Filters are compatible upgrades over Trane Perfect Fit Air Filters. These Filters Fast Air Filters specifically replace Trane part number BAYFTAH21M or FLR06072, which is a 21.5x21x5 Air Filter used in several Trane Air Cleaners


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FiltersFast Trane Perfect Fit BAYFTAH21M 21.5x21x5 2pk
Our Price: $99.00

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Trion Air Bear Media Filter 3-Pack 16x25x5, MERV 8
(255649-105 3pack)

The Trion Air Bear Media AC Filter 16x25x5 part number 255649-105 is a genuine Trion Air Bear pleated media A/C filter. The 255649105 can be used in Trion models Air Bear Supreme 1400 and Trion Air Bear 1400.


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Trion Air Bear Media Filter 3-Pack 16x25x5, MERV 8
Our Price: $61.99
Retail: $111.00
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Trane BAYFTFREXM2 Expandable Replacement-2-Pack
(BAYFTFREXM2)

The Trane BAYFTFREXM2 Expandable Replacement Media is a pair of furnace air filters that can only be used with a Retrofit Frame Kit already installed. This Trane air filter measures approximately 25" in length x 5" in thickness. This Trane Perfect F


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Trane BAYFTFREXM2 Expandable Replacement-2-Pack
Our Price: $60.95
Retail: $69.99
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FiltersFast Brand Trane 21x21.5x5 BAYFTAH21M 2Pack
(FFC215215TRNM8)

This FiltersFast Filter for Trane 21x21.5x5 BAYFTAH21M 2Pack is an economical compatible version of the genuine OEM Trane Perfect Fit 21.5x21x5 Filter.


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FiltersFast Brand Trane 21x21.5x5 BAYFTAH21M 2Pack
Our Price: $64.99
Retail: $70.00
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Honeywell FC100A1003 16x20x5 Pleated Air Filter
(FC100A1003)

The Honeywell FC100A1003 16"x20" Media AC Filter can be used with Honeywell 16 x 20 Air Cleaners including the Honeywell F100F1004, F100B1008, F150E1000, F100F2028, and others. Genuine Honeywell Part.


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Honeywell FC100A1003 16x20x5 Pleated Air Filter
As Low As: $30.99
Retail: $49.99
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Carrier EXPXXFIL0020 EZ-FLEX Air Purifier Filter
(EXPXXFIL0020)

The Carrier EXPXXFIL0020 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 EXPXXFIL0020 EZ-FLEX Air Purifier Filter
Our Price: $43.95
Retail: $49.95
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Lennox X0585 MERV 11 Pleated Media Filter
(X0585)

This Lennox Lennox X0585 MERV 10 Pleated Media Filter offers a pleated a design for more efficient and effective filtration.


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Lennox X0585 MERV 11 Pleated Media Filter
Our Price: $35.99
Retail: $39.99
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FiltersFast Brand Aprilaire SpaceGard 2400 16x27x6 2-Pack
(FFC162766SG)

The Filters Fast Compatible 16x27x6 MERV 11 Air Filter can be used as an upgrade for the Aprilaire Space Gard 2400. Upgrade your Space Gard AC filter today to the pre-assembled, easy to install Filters Fast Space Gard Compatible 16x27x6!


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FiltersFast Brand Aprilaire SpaceGard 2400 16x27x6 2-Pack
Our Price: $60.90
Retail: $99.99
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Lennox X0586 MERV 11 Pleated Media Filter
(X0586)

This Lennox X0586 MERV 10 Pleated Media Filter is a genuine MERV 10 filter offering efficient and effective filtration. This Lennox Pleated Furnace Filter only needs to be replaced every 6 months.


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Lennox X0586 MERV 11 Pleated Media Filter
As Low As: $29.95
Retail: $39.99
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FiltersFast Brand 21x23x5 Perfect Fit BAYFTAH23M 2pk
(FFC21235TRNM8)

For an economical alternative to the genuine OEM Trane 21x23x5 Perfect Fit BAYFTAH23M Filter, try this FiltersFast Brand 21x23x5 Perfect Fit BAYFTAH23M 2pk.


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FiltersFast Brand 21x23x5 Perfect Fit BAYFTAH23M 2pk
Our Price: $66.00
Retail: $70.00
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Whirlpool 8171434 Large Pre-Filter
(8171434)

Whirlpool Whispure 8171434 Pre-Filters fit Whirlpool Models AP350, AP450, and AP510. This Activated Carbon Pre-filter pre-cleans the air by helping reduce odors as it filters out larger particles, therefore extending the life of your HEPA filter.


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Whirlpool 8171434 Large Pre-Filter
Our Price: $40.95
Retail: $59.99
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Filtersfast 20x20x5 for Skuttle Air Cleaner Filter 000-0448-003
(000-0448-003)

Filtersfast 20x20x5 for Skuttle 000-0448-003 Air Cleaner Filters measures 20"x20"x5", & dramatically reduces airborne particles such as dust, dust mites, pollen, mold spores, pet dander & other allergens


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Filtersfast 20x20x5 for Skuttle Air Cleaner Filter 000-0448-003
Our Price: $20.98
Retail: $50.00
You Save 58%!

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Carrier GAPCCCAR1620 Air Purifier Filter
(GAPCCCAR1620)

The Carrier GAPCCCAR1620Air Purifier Filter is a genuine OEM factory replacement air filter for the Carrier Infinity Air Purifier, Bryant Perfect Air Purifier, as well as other compatible air purifiers made by BDP, Payne, and Totaline (models GAPAA


In stock! Ships in 1 business day.
Carrier GAPCCCAR1620 Air Purifier Filter
As Low As: $77.95
Retail: $84.99
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FiltersFast Trane Perfect Fit BAYFTFR21M 21x27x5 2pk
(FFC21275TRNM11)

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


In Stock! Ships in 2 to 3 business days.
FiltersFast Trane Perfect Fit BAYFTFR21M 21x27x5 2pk
Our Price: $90.95
Retail: $109.95
You Save 17%!

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FiltersFast Brand Honeywell FC100A1037 MERV 13 2-PACK
(FFC20255HONM13)

FiltersFast Brand Honeywell FC100A1037 MERV 13 2-PACK is a compatible media air filter with a MERV 13 energy efficiency rating. This replacement filter is also known as part number FFC20255HONM13.


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FiltersFast Brand Honeywell FC100A1037 MERV 13 2-PACK
Our Price: $83.99
Retail: $90.00
You Save 7%!

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Lennox X8788 MERV 16 PureAir Filter Replacement
(X8788)

The Lennox X8788 MERV 16 filter is made for your PureAir PC020-28 unit. Also known as a healthy climate filter, this pleated filter will remove harmful airborne contaminants from your home. If you or your family members suffer from asthma or allergi

Free shipping within the continental United States!

In stock! Ships in 1 business day.
Lennox X8788 MERV 16 PureAir Filter Replacement
Our Price: $110.95
Retail: $119.99
You Save 8%!

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Lennox X6670 MERV 11 Pleated Filter Media-16x25x5
(X6670)

This Lennox X6670 Fir Filter Media is able to capture particles as small as 0.3 microns. This Lennox Pleated Filter Media offers greater dust-holding ability.


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Lennox X6670 MERV 11 Pleated Filter Media-16x25x5
Our Price: $38.95
Retail: $39.95
You Save 3%!

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FiltersFast Brand Trion Air Bear Filter 20x25x5 2-Pack
(FFC20255TABM13)

The FiltersFast Brand Trion Air Bear Filter 20x25x5 MERV13 2-Pack is a compatible version of the genuine Trion Air Bear Media AC Filter 20x25x5, 255649-102.


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FiltersFast Brand Trion Air Bear Filter 20x25x5 2-Pack
Our Price: $75.99
Retail: $80.00
You Save 5%!

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Filters Fast - Air Filters

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