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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


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
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Trane Perfect Fit Compat. 17.5x27x5 2 pk, MERV 13
(FFC175275TRN M13)

These 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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Trane Perfect Fit Compat. 17.5x27x5 2 pk, MERV 13
Our Price: $89.99
Retail: $116.99
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Honeywell 203371 Air Cleaner Pre-Filter 2-PACK
(203371)

The Honeywell 203371 is the correct replacement for the following air cleaners: Honeywell F300E1019 Honeywell F58A1001 Honeywell F58E1002 Honeywell F50F1073 Honeywell F58F1018 Honeywell F50E1158 Honeywell F50E1174 Honeywell F50E1281 Honey


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Honeywell 203371 Air Cleaner Pre-Filter 2-PACK
Our Price: $55.59
Retail: $59.99
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Honeywell 24000 Compatible HEPA Filter
(24000)

The Honeywell 24000 Replacement HEPA filter fits Honeywell, Enviracaire models 52500, 63500, 13503, EV-35B, 13520, 13523, 13525, and 13528. Genuine Honeywell part.


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Honeywell 24000 Compatible HEPA Filter
Our Price: $54.99
Retail: $69.99
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Hunter 30915 HEPAtech Replacement Purifier Filter
(30915)

The Hunter 30915 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


Special Order. Ships in 10 days.
Hunter 30915 HEPAtech Replacement Purifier Filter
Our Price: $12.99
Retail: $19.95
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Trane Perfect Fit BAYFTFR21M2A Filter-21x27x5
(BAYFTFR21M2A)

The Trane Perfect Fit BAYFTFR21M2A Filter Kit- 21x27x5 features a MERV 8 rating for the reduction of dust, dirt, and various allergens in your air, and the improvement of indoor air quality. This Trane air filter measures approximately 21" x 27" x 5


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Trane Perfect Fit BAYFTFR21M2A Filter-21x27x5
Our Price: $45.39
Retail: $49.99
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Filters Fast Trion Compatible 16x25x5, 2-pack
(FFC16255TAB)

The Filters Fast 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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Filters Fast Trion Compatible 16x25x5, 2-pack
Our Price: $55.00
Retail: $83.00
You Save 34%!

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GeneralAire 13415 MERV 11 Filter Media for AC4
(GA 4401)

The GeneralAire air cleaner filter replacement is manufactured for your AC4 furnace air cleaner. This air cleaner filter cartridge features a MERV 11 rating that will capture particulates down to 3 microns in size. This genuine GeneralAire product i


In Stock! Ships in 7 to 8 business days.
GeneralAire 13415 MERV 11 Filter Media for AC4
Our Price: $29.99
Retail: $30.99
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Honeywell 50000293-001 Post Air Filter 2-Pack 2-Pack
(50000293-001)

The Honeywell 50000293-001 is a post filter that fits the following electronic air cleaner models: Honeywell F50F Honeywell F300E The Honeywell 50000293-001 Post Air Filter - 16x10 improves the performance and efficiency of the air cleaner.


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Honeywell 50000293-001 Post Air Filter 2-Pack
Our Price: $39.90

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Holmes HAPF600 HEPA Filter for Harmony Series
(HAPF600)

The Holmes HAPF600 HEPA Filter fits new Harmony Series Modular Air Purifiers HAP615, HAP625, HAP650, HAP675, HAP725, HAP750, HAP1625, HAP1650, HAP1750, HAP1725 and replaces GE Brand 10633, 106643, and 106653.


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Holmes HAPF600 HEPA Filter for Harmony Series
Our Price: $24.00
Retail: $24.99
You Save 4%!

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Honeywell 203719 Comp Furnace Air Filter - 16x25x5
(203719)

The Honeywell 203719 Furnace Air Filter - 16x25x5 is a replacement air filter for use with the Honeywell 16X25 model F100 and F200 air cleaners. This Honeywell air filter, also known as the Honeywell FC100A1029, has a MERV 10 rating and traps 96% of


In stock! Ships in 1 business day.
Honeywell 203719 Comp Furnace Air Filter - 16x25x5
Our Price: $35.00
Retail: $39.95
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Trion 16x25x3 Air Bear Cub Filter - MERV 13 3-Pack
(FFC16253TABM13)

The 16x25x3 Trion Air Bear Cub Filter is a compatible version of the genuine Trion Air Bear Media AC Filter 16x25x3, 255649-101.


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Trion 16x25x3 Air Bear Cub Filter - MERV 13 3-Pack
Our Price: $83.00
Retail: $100.00
You Save 17%!

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Honeywell FC40R1045 14x25 Return Air Grille Filter
(FC40R1045)

Honeywell FC40R1045 14x25 Return Air Grille AC Filter is a high efficiency, replacement for return grille applications. Designed to capture airborne particles that circulate through the filter. Nominal Dimension 14x25x4. Genuine Honeywell Part.


In Stock! Ships in 5 to 6 business days.
Honeywell FC40R1045 14x25 Return Air Grille Filter
Our Price: $41.00
Retail: $50.00
You Save 18%!

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Hunter 30917 HEPAtech Purifier Filter
(30917)

The Hunter 30917 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


In Stock! Ships in 10 to 11 business days.
Hunter 30917 HEPAtech Purifier Filter
Our Price: $16.99
Retail: $19.95
You Save 15%!

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Honeywell 50000293-002 Post Filter for F300 2-Pack 2-Pack
(50000293-002)

The Honeywell 50000293-002 is the correct replacement for the following air cleaners: Honeywell F300 Series Honeywell F50F Series Honeywell F58F Series The Honeywell 50000293-002 Post Filter for F50F & F300 measures 16 inches by 12 1/2 inche


In Stock! Ships in 7 to 8 business days.
Honeywell 50000293-002 Post Filter for F300 2-Pack
Our Price: $40.07

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Filters Fast Trion Air Bear 16x25x3 Air Filter 3pk
(FFC16253TAB)

Replace your Trion Air Bear 255649-101 16x25x3 air filter with this Filters Fast compatible AC filter, which features a MERV 11 rating, an upgrade from the MERV 8 Trion Air Bear.


In Stock! Ships in 1 to 2 business days.
Filters Fast Trion Air Bear 16x25x3 Air Filter 3pk
Our Price: $65.00

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Trion 16x25x5 Air Bear Filter MERV 13 2-Pack
(FFC16255TABM13)

The Trion 16x25x5 Air Bear Furnace Filter is the compatible version of the genuine Trion Air Bear Media AC Filter 16x25x5, 255649-105.


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Trion 16x25x5 Air Bear Filter MERV 13 2-Pack
Our Price: $93.00
Retail: $100.00
You Save 7%!

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Honeywell 20x20x5 Filter FC100A1011 MERV 13 2-Pack
(FFC20205HONM13)

The Honeywell 20x20x5 Filter FC100A1011 is a compatible version of the genuine Honeywell FC100A1011 20"x20" Media AC Filter. This filter replacement is also known as part number FFC20205HONM13.


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Honeywell 20x20x5 Filter FC100A1011 MERV 13 2-Pack
Our Price: $79.99
Retail: $90.00
You Save 11%!

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Holmes HAPF60 Carbon Air Purifier PreFilter 2-Pack 2-Pack
(ROHAPF60M)

The Holmes HAPF60 Air Purifier Carbon PreFilter-2 Pack is a pack of replacement carbon pre-filters for several models of air cleaners from Holmes, Bionaire, and GE. This two pack of air purifier filters reduces the presence of odors within the home


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Holmes HAPF60 Carbon Air Purifier PreFilter 2-Pack
Our Price: $5.00

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Honeywell FC200E1011 Media Filter 20x20x5- Merv 13
(FC200E1011)

The Honeywell FC200E1011 Media Filter 20x20x5- Merv 13 is a replacement air filter for the Honeywell 20X20 F100 and F200 media air cleaners. This Honeywell air filter boasts a MERV 13 rating and removes over 97% of 3 to 10 micron particles from indo


In Stock! Ships in 5 to 6 business days.
Honeywell FC200E1011 Media Filter 20x20x5- Merv 13
Our Price: $44.99

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BioStrike Ceiling Fan Air Filter - BioStrike CFF
(BioStrike CFF)

The BioStrike Ceiling Fan Air Filter (BioStrike CFF) can be used with most ceiling fans to reduce dust, dirt, hair, pollen, pet dander, mold, and other airborne allergens. It attaches to the ceiling fan blade(s) to provide air filtration every time


Special Order. Ships in 43 days.
BioStrike Ceiling Fan Air Filter - BioStrike CFF
Our Price: $4.90
Retail: $4.99
You Save 2%!

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Filters Fast 4-inch MERV 8 Air Filters 6-Pack
(FFM8PLEAT 4)

The Filters Fast 4-inch MERV 8 4"Air Filters 6-pack is compatible with: Aprilaire Space-Gard Trion Air Bear Honeywell and other top name brand air conditioning filters. Usable in residential, commercial, and industrial applications, the


In Stock! Ships in 1 to 2 business days.
Filters Fast 4-inch MERV 8 Air Filters 6-Pack
Our Price: $62.99
Retail: $69.99
You Save 10%!

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Trion Air Bear Cub Filter 16x25x3 MERV 11
(259112-101)

The 259112-101 is the correct filter replacement for all air cleaning sytems requiring a 16" x 25" x 3" air filter. The Trion Air Bear Cub Filter is a genuine Air Bear filter.


In stock! Ships in 1 business day.
Trion Air Bear Cub Filter 16x25x3 MERV 11
Our Price: $24.99
Retail: $25.95
You Save 4%!

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Honeywell 14x14 MERV 11 Filter TruDRY DR90 -6 pack
(50049536-003)

The Honeywell 14x14x1 MERV 11 Air Filter- TruDRY DR90 is a replacement filter for the Honeywell TrueDry DR90 Dehumidification System. This Honeywell air filter measures 14" x 14" x 1" and has a MERV 11 rating for the reduction of airborne contaminan


In Stock! Ships in 1 to 2 business days.
Honeywell 14x14 MERV 11 Filter TruDRY DR90 -6 pack
Our Price: $44.95

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F825-0548 White Rodgers Compatible 16x26x5, 2pk
(FFC16265WR)

The Filters Fast Compatible 16x26x5 MERV 11 Air Filter can be used as an upgrade for White Rodgers part number F825-0548. Upgrade your White Rodgers Media Filter today and get a better filter for the same price as the original manufacturer's brand!


In Stock! Ships in 1 to 2 business days.
F825-0548 White Rodgers Compatible 16x26x5, 2pk
Our Price: $54.25
Retail: $55.25
You Save 2%!

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