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Find Replacement Air Filters Fast & Easy!

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


BlueAir 16x25x1 MERV 14 Particle Air Filter 2-pack
(1625FF)

The BlueAir 16x25x1 MERV 14 Particle Air Filter 2-pack is a set of two air filters compatible for use with the BlueAir Whole Filtration System and even replaces your regular central air filters. BlueAir filters feature millions of positively charged


Discontinued Product Read Description.
BlueAir 16x25x1 MERV 14 Particle Air Filter 2-pack
Our Price: $69.95
Retail: $79.99
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BlueAir 20x20x1 MERV 14 Particle Air Filter 2-pack
(2020FF)

The BlueAir 2020FF is a replacement air filter that fits the following heating and cooling systems: All central heating and air conditioning systems that require a 20 inch x 20 inch x 1 inch filter The BlueAir 20x20x1 MERV 14 Particle Air Filt


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BlueAir 20x20x1 MERV 14 Particle Air Filter 2-pack
Our Price: $69.95
Retail: $79.99
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BlueAir 20x25x1 MERV 14 Particle Air Filter 2-pack
(2025FF)

The BlueAir 2025FF is a replacement air filter that fits the following heating and cooling systems: All central heating and air conditioning systems that require a 20 inch x 25 inch x 1 inch filter The BlueAir 20x25x1 MERV 14 Particle Air Filt


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BlueAir 20x25x1 MERV 14 Particle Air Filter 2-pack
Our Price: $69.95
Retail: $79.99
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BlueAir 14x20x1 High Efficiency Air Filter Kit
(BCST1420)

The BlueAir BCST1420 contains the following: (2) 14 x 20 x 1 filters MX2 particle charger Automated filter check timer The BlueAir 14x20x1 High Efficiency Air Filter Kit turns your air conditioning or heating system into a sophisticated, hig

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BlueAir 14x20x1 High Efficiency Air Filter Kit
Our Price: $149.95
Retail: $199.99
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BlueAir 16x20x1 High Efficiency Air Filter Kit
(BCST1620)

The BlueAir BCST1620 contains the following: (2) 16 x 20 x 1 filters MX2 particle charger Automated filter check timer The BlueAir 16x20x1 High Efficiency Air Filter Kit turns your air conditioning or heating system into a sophisticated, hig

Free shipping within the continental United States!

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BlueAir 16x20x1 High Efficiency Air Filter Kit
Our Price: $149.95
Retail: $199.99
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BlueAir 16x25x1 High Efficiency Air Filter Kit
(BCST1625)

The BlueAir 16x25x1 High Efficiency Air Filter Kit includes two MERV 15 air filters, the MX2 Particle Charger, and an Automated Filter Check Timer. This BlueAir filter kit converts your existing central air system into an air purifier. The BlueAir h

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BlueAir 16x25x1 High Efficiency Air Filter Kit
Our Price: $149.95
Retail: $199.99
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BlueAir 20x20x1 High Efficiency Air Filter Kit
(BCST2020)

The BlueAir 20x20x1 High Efficiency Air Filter Kit includes two replacement air filters, the MX2 Particle Charger, and an Automated Filter Check Timer. This BlueAir filter kit converts your existing central air system into a high efficiency air puri

Free shipping within the continental United States!

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BlueAir 20x20x1 High Efficiency Air Filter Kit
Our Price: $149.95
Retail: $199.99
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BlueAir 20x25x1 High Efficiency Air-Furnace Filter
(BCST2025)

The BlueAir 20x25x1 High Efficiency Air-Furnace Filter is a BlueAir filter kit that includes two replacement air filters, the MX2 Particle Charger, and an Automated Filter Check Timer that will convert your existing central air system into a high ef

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BlueAir 20x25x1 High Efficiency Air-Furnace Filter
Our Price: $149.95
Retail: $199.99
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Quality Flow 4" MERV 13 Panel Filter 3-Pack
(FFQFH1312244)

The Quality Flow 4" MERV 13 Panel Filter 3-Pack is a replacement air conditioner filter that saves on energy costs through media that provides a lower pressure drop than standard panel air filters. This Filters Fast furnace filter features "Quality

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Quality Flow 4" MERV 13 Panel Filter 3-Pack
Our Price: $159.99
Retail: $199.99
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Quality Flow 12x24x4 MERV 14 Filter 3-Pack
(FFQFH1412244)

The Filters Fast FFQFH1412244 fits the following: Any HVAC system that requires a 12 inch x 24 inch x 4 inch filter The Quality Flow 12x24x4 MERV 14 Filter 3-Pack features quality flow proprietary media that provides lower pressure drop than s

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Quality Flow 12x24x4 MERV 14 Filter 3-Pack
Our Price: $199.98
Retail: $219.99
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Quality Flow 12x24x4 MERV 14 Panel Filter 3-Pack
(FFQF1412244)

The Filters Fast FFQF1412244 fits the following: Any HVAC system that requires a 12 inch x 24 inch x 4 inch filter The Quality Flow 12x24x4 MERV 14 Filter 3-Pack features quality flow proprietary media that provides lower pressure drop than st

Free shipping within the continental United States!

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Quality Flow 12x24x4 MERV 14 Panel Filter 3-Pack
Our Price: $199.98
Retail: $219.99
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Bionaire Foam Air Cleaner Prefilter 2-pack 1236
(1236)

The Bionaire 1236 Foam Air Cleaner Pre-filter (2 Pack), measuring 15-1/2"x20-1/2"x1/4", removes airborne particles and pollutants using select Bionaire, Holmes & GE SmartAire Air Cleaners.


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Bionaire Foam Air Cleaner Prefilter 2-pack 1236
Our Price: $19.98
Retail: $29.99
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Hamilton Humidifier Evaporator Pad EP-035
(EP-035)

The Hamilton Humidifier Evaporator Pad EP-035 is a replacement evaporator pad for the Hamilton Model 8FT Humidifier. This furnace humidifier filter includes a felt drip tray wick and utilizes honeycomb filtration to capture mineral pollutants in you


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Hamilton Humidifier Evaporator Pad EP-035
Our Price: $9.99
Retail: $15.08
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Filters Fast 5" F825-0548 Compatible Filter 2-Pack
(FFC16265WR OKGM)

The FiltersFast F825-0548 5" Compatible Filter can be used in Emerson Model SST14 Air Cleaners, and all air cleaner systems requiring 16"x26"x5" media filter cartridges. These filters remove harmful airborne contaminants for cleaner indoor air.


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Filters Fast 5" F825-0548 Compatible Filter 2-Pack
Our Price: $54.25
Retail: $55.25
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Filters Fast MERV 8 16x27x6 Air Filter 2-Pack
(FFC162766SG OKGM)

The Filters Fast MERV 8 16x27x6 Air Filter 2-Pack is a pack of replacement air filters that is an upgrade over the Aprilaire Space Gard 2400 AC Filter. This 16" x 27" 6" has a MERV 8 rating for the reduction of airborne pollutants like pollen, dir


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Filters Fast MERV 8 16x27x6 Air Filter 2-Pack
Our Price: $45.00
Retail: $59.99
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FiltersFast Trane 21x23x5 Compatible Filter 2-Pack
(FFC21235TRN OKGM)

The Filters Fast 5" Trane Perfect Fit 21x23x5 Compatible FFC21235TRN OKGM is the correct replacement for the following: any air cleaner that requires a 21" x 23" x 5" filter This Filters Fast air filter also replaces Trane Perfect Fit BAYFTAH23


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FiltersFast Trane 21x23x5 Compatible Filter 2-Pack
Our Price: $98.00
Retail: $99.99
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Filters Fast MERV 8 Odor Killer 2" 6-Pack
(FFOKGM 2 INCH)

The Filters Fast MERV8 Odor Killer 2" 6-Pack is an effective replacement charcoal air filter to eliminate pet odors, gases, smoke odors, cigarette odors and other contaminants from your indoor air.


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Filters Fast MERV 8 Odor Killer 2" 6-Pack
Our Price: $49.99
Retail: $99.99
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Filters Fast 14x20x5 MERV 8 Return Grille Filter
(FFRAGM8-14205)

The Filters Fast 14x20x5 MERV 8 Return Grille Filter is a replacement air filter compatible for use with any air cleaner system requiring a 14" x 20" x 5" return grille filter media cartridge. This Filters Fast air furnace filter is constructed with


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Filters Fast 14x20x5 MERV 8 Return Grille Filter
Our Price: $22.99
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Filters Fast 14x24x5 MERV 8 Return Grille Filter
(FFRAGM8-14245)

The FiltersFast 14x24x5 MERV 8 Return Grille Filters, for most air cleaners using 14"x24"x5" filter media, can dramatically reduce airborne particles and allergens to produce healthier indoor air.


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Filters Fast 14x24x5 MERV 8 Return Grille Filter
Our Price: $39.99
Retail: $46.99
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Filters Fast 15x20x5 MERV 8 Return Grille Filter
(FFRAGM8-15205)

The Filters Fast FFRAGM8-15205 fits the following: Most air returns that require a 15" x 20" filter The Filters Fast 15x20x5 MERV 8 Return Grille Filter will reduce pollen, dust, pet dander, and other allergens from the air inside your home. T


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Filters Fast 15x20x5 MERV 8 Return Grille Filter
Our Price: $38.99
Retail: $45.99
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Filters Fast 16x24x5 MERV 8 Return Grille Filter
(FFRAGM8-16245)

The Filters Fast 16x24x5 MERV 8 Return Grille Filter is a MERV 8 odor killer filter that is an economical upgrade over your basic poly-pleated or fiberglass filter media. HVAC system life can be increased or extended through the use of this high eff


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Filters Fast 16x24x5 MERV 8 Return Grille Filter
Our Price: $39.99
Retail: $46.99
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Filters Fast 20x24x5 MERV 8 Return Grille Filter
(FFRAGM8-20245)

The Filters Fast FFRAGM8-20245 fits the following: Most air returns that require a 20" x 24" filter The Filters Fast 20x24x5 MERV 8 Return Grille Filter reduces pollen, dust, pet dander and other allergens from your indoor air. This air return


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Filters Fast 20x24x5 MERV 8 Return Grille Filter
Our Price: $40.99
Retail: $47.99
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Filters Fast 24x30x5 MERV 8 Return Grille Filter
(FFRAGM8-24305)

The FiltersFast MERV 8 Return Grille Filter fit most air cleaners requiring 24" x 30" x 5" filters, and efficiently reduce airborne particulates such as dust, pet dander, pollen,dust mites, etc to provide healthier indoor air.


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Filters Fast 24x30x5 MERV 8 Return Grille Filter
Our Price: $52.99
Retail: $59.99
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Filters Fast 10x10x1 MERV 8 Filter 6-Pack
(FFOKGM 6-PACK-10101)

The Filters Fast FFOKGM 6-PACK-10101 can be used for most air cleaners requiring 10"x10"x1" filter cartridges. These filters will significantly reduce dust, pet dander, pollen, mildew, mold and other allergens from your indoor air.


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Filters Fast 10x10x1 MERV 8 Filter 6-Pack
Our Price: $38.99
Retail: $49.99
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Filters Fast 12x12x1 MERV 8 Filter 6-Pack
(FFOKGM 6-PACK-12121)

The Filters Fast FFOKGM 6-PACK-12121 is an Odor Killer Grey Matter filter that works to remove the following from your indoor air: Smoke odors Cigarette odors Pet odors Gases Other contaminants Pollen Dust Pet Dander Mold Mildew Other


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Filters Fast 12x12x1 MERV 8 Filter 6-Pack
Our Price: $38.99
Retail: $49.99
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Filters Fast - Air Filters

" Happy with my item, the price, and the fast delivery of my filters! " - Sam, Atlanta, GA
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