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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.

Routine maintenance is a critical part of caring for your home. One area that should not be overlooked is replacing your home’s furnace filters on a regular basis following the manufacturers recommended guidelines. By doing this, you will help prolong the life of your system, as well as help eliminate indoor air contaminates.

Air filters help rid your home of a variety of air pollutants including smog, smoke, pollen, bacteria, pet dander, mold spores, dust, dust mites, debris and virus carrying particles. The MERV rating on furnace filters can help guide you in this area. The higher the rating, the more efficient the air filter will be at eliminating indoor contaminates.

Filtrete, Trion, 3M and Honeywell all manufacture high quality filters in a variety of sizes to meet all of your air filtration needs.


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Furnace Filters product list


Trane Perfect Fit BAYFRAME210A Filter Kit- 21x27x5
(BAYFRAME210A)

The Trane BAYFRAME210A is an air filter kit that fits the following air cleaner model: Trane TFM210A0FR0 The Trane Perfect Fit BAYFRAME210A Filter Kit- 21x27x5 contains 1 plastic frame and 1 BAYFTFREXM expandable accordion filter. This Trane P

Free shipping within the continental United States!

Special Order. Ships in 23 days.
Trane Perfect Fit BAYFRAME210A Filter Kit- 21x27x5
Our Price: $157.72
Retail: $199.99
You Save 21%!

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Trane BAYFRAME215A Filter Frame Kit 21.5x21x5 2-Pack
(BAYFRAME215A)

The Trane BAYFRAME215A is an air filter kit that fits the following air cleaner model: Trane TFM215A0AH1 The Trane BAYFRAME215A Filter Frame Kit 21.5x21x5 contains 1 plastic frame and 1 BAYFTAHEXM expandable accordion filter. This Trane Perfec

Free shipping within the continental United States!

Special Order. Ships in 24 days.
Trane BAYFRAME215A Filter Frame Kit 21.5x21x5
Our Price: $288.36

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Vent Cover Magnetic Sheets - 3 pack (cut to fit)
(VC1)

The RPS Vent Cover Magnetic Sheets is designed to control air flow that is energy efficient and saves you money.


Special Order. Ships in 1 days.
Vent Cover Magnetic Sheets - 3 pack (cut to fit)
As Low As: $13.95
Retail: $19.99
You Save 30%!

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Indoor Air Quality Test Kit, Bio-Scan 400 10-Pack
(Bio-Scan 400)

Did you know most indoor air is littered with polutants that make breathing in your own home or office hazardous for your health! Allergies, dry, itchy eyes and throat can all be signs that your indoor air quality is sub-standard. The Bio-Scan 400...


Special Order. Ships in 34 days.
Indoor Air Quality Test Kit, Bio-Scan 400
Our Price: $628.50

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Filters Fast MERV 11 Return Grille Air Filter 5"
(FFRAGF)

The Filters Fast MERV 11 Return Grille Air Filter 5" are a great option for upgrading or replacing the traditional 1-inch air filter found in your home or office. View details to learn more...


Discontinued Product Read Description.
Filters Fast MERV 11 Return Grille Air Filter 5"
Our Price: $29.99
Retail: $39.99
You Save 25%!

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FiltersFast GeneralAire Compatible 20x24x5, 2-pack
(FFC20245GA)

The Filters Fast Compatible 20x24x5 MERV 11 Air Filter can be used as a replacement for GeneralAire part number 12758. Fits Generalaire AC-1 and Byrant 902BXX020.


Discontinued Product Read Description.
FiltersFast GeneralAire Compatible 20x24x5, 2-pack
Our Price: $48.25
Retail: $49.25
You Save 2%!

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Filters Fast Odor Killer Air Filter, 12-pack
(FFOKM8)

The Filters Fast Odor Killer is a MERV 8 two-stage carbon blended filter designed to "kill" odors such as cigarette smoke, pet odors, irritating gases, cooking odors and other bad odors that might be affecting your indoor air quality.


Discontinued Product Read Description.
Filters Fast Odor Killer Air Filter, 12-pack
Our Price: $99.00
Retail: $100.00
You Save 1%!

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Filters Fast Odor Killer Air Filter, 6-pack
(FFOK 6-pack)

The Filters Fast Odor Killer is a MERV 8 two-stage carbon blended filter designed to "kill" odors such as cigarette smoke, pet odors, irritating gases, cooking odors and other bad odors that might be affecting your indoor air quality.


Discontinued Product Read Description.
Filters Fast Odor Killer Air Filter, 6-pack
Our Price: $76.67
Retail: $79.99
You Save 4%!

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Filters Fast MERV 13 Return Grille Air Filter - 5"
(FFRAG13)

Protect your health, your environment and your wallet with a Filters Fast MERV 13 Return Grille Air Filter. MERV 13 is one of the highest efficiency ratings available, and Filters Fast now offers this rating in a 5" Return Air Grille application.


Discontinued Product Read Description.
Filters Fast MERV 13 Return Grille Air Filter - 5"
Our Price: $39.99
Retail: $49.99
You Save 20%!

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Filters Fast Odor Killer Return Air Grille Filter
(FFRAGOK)

Filters Fast now offers its 5" Return Air Grille Filters with Odor Killer technology, a MERV 8 two-stage carbon blended filter designed to "kill" odors. FFRAGOK.


Discontinued Product Read Description.
Filters Fast Odor Killer Return Air Grille Filter
Our Price: $45.00
Retail: $59.99
You Save 25%!

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Filtrete Advanced Allergen (Deep Blue) 6-pack
(Advanced Allergen 6pack)

The Advanced Allergen Air Filter is the newest, most advanced high-performance filter from Filtrete. No Competitor's #1 Filter Performs Better! It even out performs the Filtrete Ultra Allergen--previously the #1 Performance Filter on the Market.

Free shipping within the continental United States!

Discontinued Product Read Description.
Filtrete Advanced Allergen (Deep Blue) 6-pack
Our Price: $110.00
Retail: $126.00
You Save 13%!

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3M Filtrete 4 Inch Allergen Media Filter 4-pack
(4 inch Allergen 4-pack)

3M Filtrete Allergen Reduction Filter for Media Air Cleaners are the smart choice if you're looking to upgrade or retrofit the air filter in your existing HVAC system. Captures 97% of large airborne allergens like pollen, mold spores, & dust mites.

Free shipping within the continental United States!

Discontinued Product Read Description.
3M Filtrete 4 Inch Allergen Media Filter 4-pack
Our Price: $128.00
Retail: $146.00
You Save 12%!

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Filtrete Custom Size Air Filter 6-Pack
(Custom Filtrete)

Can't find the size air filter you need? We can now provide custom size air filters to fit your needs! Custom sizes available in the Ultra Allergen Series and are subject to requirements. To view these requirements please click view details...

Free shipping within the continental United States!

Discontinued Product Read Description.
Filtrete Custom Size Air Filter 6-Pack
Our Price: $186.81
Retail: $196.15
You Save 5%!

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Filtrete Advanced Allergen Air Filter (Deep Blue)
(Advanced Allergen)

The Advanced Allergen Air Filter is the newest, most advanced high-performance filter from Filtrete. No Competitor's #1 Filter Performs Better! It even out performs the Filtrete Ultra Allergen--previously the #1 Performance Filter on the Market.


Discontinued Product Read Description.
Filtrete Advanced Allergen Air Filter (Deep Blue)
Our Price: $18.99
Retail: $21.00
You Save 10%!

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3M Filtrete 4 Inch Allergen Reduction Filter
(4 inch Allergen)

3M Filtrete Allergen Reduction Filter for Media Air Cleaners are the smart choice if you're looking to upgrade or retrofit the air filter in your existing HVAC system. Captures 97% of large airborne allergens like pollen, mold spores, & dust mites.


Discontinued Product Read Description.
3M Filtrete 4 Inch Allergen Reduction Filter
As Low As: $60.32
Retail: $69.99
You Save 14%!

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Universal Room Air Conditioner Filter
(AC1)

There are many indoor air culprits that affect allergy sufferers. The Universal Room Air Conditioner Filter is designed to remove harmful airborne allergens such as pollen, mold spores, bacteria, dust mites and pet dander.


Discontinued Product Read Description.
Universal Room Air Conditioner Filter
Our Price: $5.99
Retail: $12.99
You Save 54%!

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Electrostatic Throw Away Filter 15X25 (cut to fit)
(EAC2)

The Electrostatic Throw Away Filter is a cut-to-fit HEPA air filter that is designed to eliminate unpleasant odors.


Discontinued Product Read Description.
Electrostatic Throw Away Filter 15X25 (cut to fit)
Our Price: $4.99
Retail: $6.99
You Save 29%!

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Baby's Room Vent Filter Kit
(VC-B)

The BestAir Baby's Room Vent Filter is a large 12" x 14" cut-to-fit, electrostatic and carbon filter that helps to reduce airborne pollutants such as pollen, dust, dirt, bacteria, mold spores, pet dander and hair.


Discontinued Product Read Description.
Baby's Room Vent Filter Kit
Our Price: $5.99
Retail: $7.99
You Save 25%!

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BestAir Family Room/Bedroom Vent Filter Kit
(VC-F)

The BestAir Family Room/Bedroom Vent Filter Kit is an easy to install, cut-to-fit filter designed to reduce airborne pollutants like dust, pet dander, dirt, pollen, hair and other allergens.


Discontinued Product Read Description.
BestAir Family Room/Bedroom Vent Filter Kit
Our Price: $5.99
Retail: $7.99
You Save 25%!

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Bestair All Rooms Vent Filter Kit
(VC-A)

The BestAir All Rooms Vent Filter Kit has a great prefilter for furnace and air cleaners to reduce airborne particles and pollutants such as pet dander, dust, pollen, dirt, hair and other fibers.


Discontinued Product Read Description.
Bestair All Rooms Vent Filter Kit
Our Price: $5.99
Retail: $7.99
You Save 25%!

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GeneralAire FP1625X5 MERV 8 AC Filter Media
(4527)

The GeneralAire FP1625X5 MERV 8 AC Filter Media is a replacement air filter that fits the MAC1400 air cleaner. The GeneralAire FP1625X5 filter improves your indoor air quality by reducing particulates like dust, dander, allergens, and pollen through


Discontinued Product Read Description.
GeneralAire FP1625X5 MERV 8 AC Filter Media
Our Price: $19.99
Retail: $29.99
You Save 33%!

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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.


Discontinued Product Read Description.
Filters Fast MERV 8 Odor Killer 2" 6-Pack
Our Price: $49.99
Retail: $99.99
You Save 50%!

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Filters Fast 4" MERV 8 Odor Killer Filter 6-Pack
(FFOKGM4 6PACK)

The Filters Fast 4" MERV 8 Odor Killer Filter 6-Pack is a set of replacement air filters that can eliminate common odors from your home or office, including pet odors, gaseous odors, and smoke and cigarette odors. These odor killer filters utilize G

Free shipping within the continental United States!

Discontinued Product Read Description.
Filters Fast 4" MERV 8 Odor Killer Filter 6-Pack
Our Price: $62.99
Retail: $69.99
You Save 10%!

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Filters Fast 5" Trion Compatible Air Filter 2-Pack
(FFC20255TAB OKGM)

The Filters Fast 5" Trion Compatible FFC20255TAB OKGM is a compatible air filter for Trion Air Bear Air Cleaners that can replace part numbers 255649-102, 229990-002, and 229990-102. This Trion compatible filter features a MERV 8 efficiency rating


Discontinued Product Read Description.
Filters Fast 5" Trion Compatible Air Filter 2-Pack
Our Price: $44.99
Retail: $50.75
You Save 11%!

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FiltersFast 5" WR Compatible FFC20265WR OKGM
(FFC20265WR OKGM)

The FiltersFast 5" WR Compatible FFC20265WR OKGM is a compatible replacement air filter that is an upgrade over the White Rodgers F825-0549 air filter. The Filters Fast FFC20265WR OKGM 20" x 26" x 5" air filter can be used in several White Rodgers A


Discontinued Product Read Description.
FiltersFast 5" WR Compatible FFC20265WR OKGM
Our Price: $72.99
Retail: $79.99
You Save 9%!

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Filters Fast - Furnace Filters

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