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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


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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General Aire 20x20 MERV10 Filter Media GA100A11
(4354)

The General Air GA100A11 20x20 MERV 10 Filter Media is the replacement filter for Honeywell F25A, F35F, F100F & F200E Media Air Cleaners; Honeywell F100B2024, F100F1020, F100F2036 & F150E1018 Air Cleaners.


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General Aire 20x20 MERV10 Filter Media GA100A11
Our Price: $17.99
Retail: $39.99
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Bionaire HAPF600CS Comp Air Purifier HEPA Filter
(Bionaire HAPF600CS R)

The Bionaire HAPF600CS R Air Purifier HEPA Filter fits many models of Bionaire and other brands of air purifiers.This Bionaire air purifier filter is a HEPA filter. The Bionaire HAPF600CS R Air Purifier HEPA Filter: Fits many Bionaire and othe


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Bionaire HAPF600CS Comp Air Purifier HEPA Filter
Our Price: $22.95
Retail: $29.95
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Honeywell FC200E1029 MERV 13 Air Filter - 16x25x5
(FC200E1029)

The Honeywell FC200E1029 MERV 13 Air Filter - 16x25x5 is a replacement air filter for the Honeywell 16x25 F100 and F200 media air cleaner models. This Honeywell air filter features a MERV 13 rating that helps it remove over 97% of airborne contamina


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Honeywell FC200E1029 MERV 13 Air Filter - 16x25x5
Our Price: $39.39
Retail: $39.99
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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
You Save 16%!

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Carrier EXPXXFIL0016 EZ-FLEX Air Purifier Filter
(EXPXXFIL0016)

The Carrier EXPXXFIL0016 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 EXPXXFIL0016 EZ-FLEX Air Purifier Filter
Our Price: $51.98
Retail: $69.99
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Trion Air Bear Media AC Filter 20x20x5 4-Pack
(255649-103 4pack)

The Trion Air Bear Media AC Filter 20x20x5 part number 255649-103 is a genuine Trion Air Bear pleated media A/C filter. The 255649103 can be used in Trion 20" x 20" Models including model number 455604-019. Replaces 229990-103 and 248713-103.


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Trion Air Bear Media AC Filter 20x20x5 4-Pack
Our Price: $77.00
Retail: $100.00
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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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FF 30900 Filter Replacement
(FF 30900)

The FF 30900 Filter Replacement is a compatible version of the Hunter 30900 HEPAtech Purifier Filter.


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FF 30900 Filter Replacement
Our Price: $15.99
Retail: $24.99
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Lennox X0445 MERV 11 Pleated Furnace Filter Media
(X0445)

This Lennox X0445 MERV10 Pleated Furnace Filter Media is a part of the Lennox “Healthy Climate” line of indoor air quality products. This Lennox Healthy Climate Filter is an expandable media air filter.


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Lennox X0445 MERV 11 Pleated Furnace Filter Media
Our Price: $29.90
Retail: $34.10
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GeneralAire 12758 MERV 11 Filter Media Replacement
(4001)

The GeneralAire 12758 MERV 11 Filter Media Replacement is a replacement air filter for the GeneralAire AC1 and AC22 model air cleaners. This replacement filter media features a MERV 11 rating and Micro Fiber construction for the reduction of airborn


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GeneralAire 12758 MERV 11 Filter Media Replacement
Our Price: $48.99
Retail: $63.99
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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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Carrier EXPXXFIL0024 EZ-FLEX Air Purifier Filter
(EXPXXFIL0024)

The Carrier EXPXXFIL0024 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


In stock! Ships in 1 business day.
Carrier EXPXXFIL0024 EZ-FLEX Air Purifier Filter
Our Price: $40.95
Retail: $99.99
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Lennox X0584 MERV 11 Pleated Media Filter
(X0584)

The Lennox X0584 MERV 10 Pleated Media Filter is a pleated air filter that replaces the filter media in the Lennox BMAC-14CE box media air cleaner and also fits inside Lennox the EAC012 and EAC0-14 model air cleaner cabinets in place of its electron


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Lennox X0584 MERV 11 Pleated Media Filter
Our Price: $27.00
Retail: $81.70
You Save 67%!

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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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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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Honeywell HFC40R1011 Return Grille Filter 20"x25"
(HFC40R1011)

The Honeywell HFC40R1011 20"x25" Return Air Grille Filter is a high efficiency replacement air filter for return grille air filtration applications. Honeywell replacement filters efficiently capture harmful airborne particles such as dust, pet dande


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Honeywell HFC40R1011 Return Grille Filter 20"x25"
Our Price: $49.99
Retail: $60.00
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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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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
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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
You Save 37%!

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Lennox X8789 MERV 16 Filter Media Replacement
(X8789)

The Lennox X8789 MERV 16 Filter Media Replacement is the correct replacement for any HVAC system that requires a 16" x 26" x 5" filter. This Lennox Healthy Climate filter has an efficiency rating of MERV 16, the highest efficiency rating. The Len

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Lennox X8789 MERV 16 Filter Media Replacement
Our Price: $109.38
Retail: $126.95
You Save 14%!

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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.


In Stock! Ships in 2 to 3 business days.
Honeywell 20x20x5 Filter FC100A1011 MERV 13 2-Pack
Our Price: $79.99
Retail: $90.00
You Save 11%!

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Lennox X0581 MERV 11 Pleated Furnace Filter Media
(X0581)

This Lennox X0581 MERV 10 Pleated Furnace Filter Media provides high efficiency filtration. This Merv 10 furnace filter requires no assembly or combs.


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Lennox X0581 MERV 11 Pleated Furnace Filter Media
Our Price: $25.10
Retail: $29.99
You Save 16%!

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Holmes HAPF30 Compatible Replacement HEPA Filter
(HAPF30)

The Holmes HAPF30 Replacement HEPA filter fits Holmes Air Purifier Models HAP240, HAP242, HAP243, HAP2400, HAP2404, HAP260, HAP2604, HAP412, HAP413, HAP422, HAP433 and Bionaire BAP242, BAP422, BAP815, BAP825, and BAP826.


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Holmes HAPF30 Compatible Replacement HEPA Filter
As Low As: $13.74
Retail: $29.99
You Save 54%!

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Hunter 30901 Carbon Purifier Pre-Filter
(30901)

The Hunter 30901 Carbon Pre-Filter fits all Hunter QuietFlo and HEPAtech purifiers. The 30901 Carbon Pre-Filter's activated charcoal absorbs odors from pets, smoking, cooking and more.


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Hunter 30901 Carbon Purifier Pre-Filter
As Low As: $18.50
Retail: $27.95
You Save 34%!

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