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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


Lennox X7935 MERV 16 Filter Media Replacement
(X7935)

The Lennox X7935 MERV 16 Filter Media 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% of particles.

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Lennox X7935 MERV 16 Filter Media Replacement
Our Price: $118.80
Retail: $149.95
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GeneralAire HF500 HEPA Filter for AC500
(4620)

The GeneralAire HF500 HEPA Filter for AC500 is a replacement air filter for the GeneralAire Model AC500 Air Cleaner. This HEPA filter is 99.7% efficient at reducing airborne particles down to 0.30 microns. This HEPA air filter, also known as the RHF


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GeneralAire HF500 HEPA Filter for AC500
Our Price: $94.62
Retail: $149.99
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Frigidaire 241504902 Refrigerator Air Filter
(241504902)

The Frigidaire 241504902 is a refrigerator air filtration cartridge that is the correct compatible replacement for the following: Frigidaire EAF1CB The Frigidaire 241504902 Refrigerator Air Filter fits Frigidaire and Electrolux Pure Advantage


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Frigidaire 241504902 Refrigerator Air Filter
Our Price: $11.99
Retail: $14.99
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Lennox X6675 MERV 16 Furnace Filter Replacement
(X6675)

The Lennox X6675 is a MERV 16 filter for your home. This air filter media is also known as a healthy climate air filter and is designed to fit the Lennox HCC20-28 air cleaner model.

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Lennox X6675 MERV 16 Furnace Filter Replacement
Our Price: $128.95
Retail: $149.99
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Filters Fast Trion Compatible 20x20x5, 2-pack
(FFC20205TAB)

The Filters Fast Compatible 20x20x5 MERV 11 Air Filter can be used as an upgrade for Trion Air Bear part number 255649-103. Upgrade your Trion Air Bear Filter today for just a few extra dollars!


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Filters Fast Trion Compatible 20x20x5, 2-pack
Our Price: $48.80
Retail: $49.80
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FC40R1830 18x30 Honeywell Return Grille AC Filter
(FC40R1830)

The Honeywell FC40R1830 18x30 Return Air Grille Filter is a high efficiency, replacement air filter for return grille applications. Honeywell replacement furnace filters capture airborne particles that circulate through the furnace filter.


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FC40R1830 18x30 Honeywell Return Grille AC Filter
Our Price: $41.50
Retail: $68.00
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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: $39.50
Retail: $45.00
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Holmes HWF64 Humidifier Filter
(HWF64)

The Holmes HWF64 Humidifier Filter is designed to maintain optimal peformance of your Holmes Humidifier. Fits models HM1645, HM1730, HM1745, HM1750, and HM2200.


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Holmes HWF64 Humidifier Filter
As Low As: $14.99
Retail: $25.95
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Aprilaire 4119 - Spacegard Air Filter Pleat Spacer
(Aprilaire 4119)

This Spacegard Aprilaire 2200 Filter Pleat Spacer (Aprilaire 4119) is used in the Spacegard Aprilaire 2200 Air Cleaner, Spaceguard Aprilaire 2250 Air Cleaner, and other compatible Spaceguard Aprilaire 2200 Series air cleaner models. There are five p


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Aprilaire 4119 - Spacegard Air Filter Pleat Spacer
Our Price: $19.95
Retail: $24.99
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Honeywell FC40R1078 24x24 Return Air Grille Filter
(FC40R1078)

The Honeywell FC40R1078 Return Air Grille Filter is a high efficiency, replacement air filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 24x24x4.


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Honeywell FC40R1078 24x24 Return Air Grille Filter
Our Price: $41.50
Retail: $55.00
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Lennox X8311 MERV 10 Expandable Filter Replacement
(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
Our Price: $32.39
Retail: $38.71
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Honeywell FC40R1144 Return Air Filter - 20x24
(FC40R1144)

The Honeywell FC40R1144 Return Air Filter - 20x24 is a replacement air filter that mounts in most return filter grilles. The Honeywell return air grille filter features four inches of depth, which provides a higher efficiency than standard one inch


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Honeywell FC40R1144 Return Air Filter - 20x24
Our Price: $32.95
Retail: $39.99
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Trane 21x26x5 Perfect Fit Filter BAYFTAH26M M13 x2
(FFC26215TRNM13)

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

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Trane 21x26x5 Perfect Fit Filter BAYFTAH26M M13 x2
Our Price: $110.00
Retail: $140.00
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Aprilaire Spacegard 2200 Air Cleaner Seal Kit
(Aprilaire 4725)

The Aprilaire Spacegard 2200 Air Cleaner Seal Kit (Aprilaire 4725) is for use with the Aprilaire 2200 air cleaner and the Space-Gard 2200 air cleaner. This kit includes the necessary seals which are used to seal the following contacts: (1) between t


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Aprilaire Spacegard 2200 Air Cleaner Seal Kit
Our Price: $22.30
Retail: $34.99
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Lennox X5424 MERV 16 Pleated Furnace Filter Media
(X5424)

This Lennox X5424 MERV 16 Pleated Furnace Filter Media needs to be replaced every 12 months. The Lennox MERV 16 Filter is a genuine Lennox Healthy Climate boxed media air cleaner.


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Lennox X5424 MERV 16 Pleated Furnace Filter Media
Our Price: $98.95
Retail: $122.45
You Save 19%!

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General Aire 16x20 MERV10 Filter Media GA100A03
(4350)

The GeneralAire GA100A03 16x20 MERV10 Filter Media is used on Honeywell F25 Series, F35 Series, F100 Series & F150 Series Media Style Air Cleaners, as well as Honeywell FC100A1003, F100F1004, F100B1008, F100F2028, and F150E1000 Air Cleaners.


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General Aire 16x20 MERV10 Filter Media GA100A03
Our Price: $19.99
Retail: $29.99
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Trion Air Bear 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


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Trion Air Bear Cub Filter 16x25x5 MERV 11
Our Price: $28.95
Retail: $30.40
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Lennox X8310 MERV 10 Expandable Filter Replacement
(X8310)

The Lennox x8310 expandable MERV 10 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 such as du


Special Order. Ships in 15 days.
Lennox X8310 MERV 10 Expandable Filter Replacement
Our Price: $29.95
Retail: $39.50
You Save 24%!

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Lennox X8309 MERV 10 Expandable Filter Replacement
(X8309)

The Lennox X8309 MERV 10 Expandable Filter Replacement is a replacement expandable filter for the Lennox 16x25x5 model air cleaner. This pleated air filter measures approximately 16x25x5 and boasts a MERV 10 rating.


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Lennox X8309 MERV 10 Expandable Filter Replacement
Our Price: $32.39
Retail: $39.50
You Save 18%!

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Electrolux 241754001 Replacement Air Filter
(241754001)

The Electrolux 241754001 Replacement Air Filter is a replacement filter for Electrolux and Frigidaire PureAdvantage refrigerator models. The Frigidaire air filter, also known as the Frigidaire EAFCBF, reduces common odors from your refrigerator and

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In stock! Ships in 1 business day.
Electrolux 241754001 Replacement Air Filter
As Low As: $10.95
Retail: $19.99
You Save 45%!

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Holmes HWF100 Humidifier Replacement Filter 3-pack
(HWF100)

Holmes, Harmony Humidifier HWF100 Humidifier Filter features Microban technology and is designed for use with Humidifier Models: HM630, HM729, HM4600, HM6000, HM6000RC, HM6005, HM6600, HM7204, HM7305, HM7305RC, HM7306, BCM645, BCM5520RC, and more...


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Holmes HWF100 Humidifier Replacement Filter 3-pack
Our Price: $14.00
Retail: $17.00
You Save 18%!

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Honeywell 209894 Replacement 16x20 Air Filter
(209894 R)

The Honeywell 209894 Replacement 16x20 Air Filter is a replacement furnace air filter for use with Honeywell 16 x 20 Air Cleaners, including the Honeywell F100F1004, F100B1008, F150E1000, F100F2028, and other models. This Honeywell furnace filter, a


In stock! Ships in 1 business day.
Honeywell 209894 Replacement 16x20 Air Filter
Our Price: $29.99
Retail: $49.99
You Save 40%!

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Honeywell FC40R1060 16x25 Return Air Grille Filter
(FC40R1060)

Honeywell FC40R1060 16x25 Return Air Grille AC Filter is a high efficiency, replacement air filter for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 16x25x4.


In stock! Ships in 1 business day.
Honeywell FC40R1060 16x25 Return Air Grille Filter
Our Price: $42.00
Retail: $46.00
You Save 9%!

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Hunter 30930 HEPAtech Purifier Filter
(30930)

The Hunter 30930 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


In stock! Ships in 1 business day.
Hunter 30930 HEPAtech Purifier Filter
Our Price: $25.95
Retail: $29.95
You Save 13%!

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General Aire 16x25 MERV10 Filter Media GA100A29
(4352)

The General Aire GA100A29 16x25 MERV10 Filter Media is the correct replacement filter for Honeywell F100 Series and Honeywell F150 Series Media Style Air Cleaners. These filters remove airborne particles to 1.0 micron to provide healthier indoor air.


Special Order. Ships in 9 days.
General Aire 16x25 MERV10 Filter Media GA100A29
Our Price: $29.99
Retail: $39.99
You Save 25%!

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