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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


Filters Fast MERV 8 Pleated 1" Panel Filter 6-Pack
(FFM8PLEAT1)

The Filters Fast MERV 8 Pleated 1" Panel Filter 6-Pack is a set of replacement air filters for ideal use as service pleats or prefilters in commercial HVAC systems or industrial air cleaners. These pleated media filters arrive in a 6 pack and are ef


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Filters Fast MERV 8 Pleated 1" Panel Filter 6-Pack
Our Price: $36.99
Retail: $49.99
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Hamilton Humidifier Evaporator Pad EP-036
(EP-036)

The Hamilton EP-036 is the correct replacement for the following humdifier: Hamilton 10F flow through humidifier The Hamilton Humidifier Evaporator Pad EP-036 is the part of the humidifier that collects moisture and then distributes it into th


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Hamilton Humidifier Evaporator Pad EP-036
Our Price: $13.99
Retail: $19.99
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GeneralAire F1020 MERV 13 Filter Media Replacement
(4562)

The General Air F1020 MERV 13 Filter Media measures 20"x25"x4" (approx.), and is correct filter for General Aire TERSus2000 Air Purification Systems.


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GeneralAire F1020 MERV 13 Filter Media Replacement
Our Price: $61.91
Retail: $69.99
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Aprilaire #401 Compatible Media Filter 2-Pack
(SG4PR-B)

The Space-Gard MERV 11 Compatible Media Filter 2-Pack is a two pack of compatible replacement air filters for the Aprilaire Model 2400 Air Cleaner. Model #401.


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Aprilaire #401 Compatible Media Filter 2-Pack
Our Price: $89.90
Retail: $94.40
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Aprilaire #401 Compatible Media Filter 2-Pack
(SG4PR-B)

The Space-Gard MERV 11 Compatible Media Filter 2-Pack is a two pack of compatible replacement air filters for the Aprilaire Model 2400 Air Cleaner. Model #401.


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Aprilaire #401 Compatible Media Filter 2-Pack
Our Price: $89.90
Retail: $94.40
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Lennox X5425 MERV 16 Pleated Furnace Filter Media
(X5425)

This Lennox X5425 MERV 16 Pleated Furnace Filter Media is an excellent filter for someone who wants a significant upgrade over standard fiberglass filters from the hardware store. This pleated filter is a genuine MERV 16 filter.

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Lennox X5425 MERV 16 Pleated Furnace Filter Media
Our Price: $99.95
Retail: $122.10
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White Rodgers 16x26x5 Furnace Filter F825-0548 2pk
(FFC16265WRM8)

If you are looking for an economical compatible alternative for the OEM White Rodgers 16x26x5 Air Furnace Filter try this White Rodgers 16x26x5 Furnace Filter Replacement F825-0548.


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White Rodgers 16x26x5 Furnace Filter F825-0548 2pk
Our Price: $57.00
Retail: $59.99
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Honeywell FC40R1136 18x24 Return Grille Air Filter
(FC40R1136)

The Honeywell FC40R1136 is the correct replacement for the following air return grille filters: Most air return filter grilles The Honeywell FC40R1136 18x24 Return Grille Air Filter measures 18 inches by 24 inches. This Honeywell FC40R1136 is


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Honeywell FC40R1136 18x24 Return Grille Air Filter
Our Price: $31.18
Retail: $39.99
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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


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Honeywell 209894 Replacement 16x20 Air Filter
Our Price: $29.99
Retail: $49.99
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Trane 21x27x5 Perfect Fit Filter BAYFTFR21M M13 x2
(FFC21275TRNM13)

The Trane 21x27x5 Perfect Fit Filter BAYFTFR21M is an economical compatible version of the genuine Trane 21x27x5 Perfect Fit Air Filter.

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Trane 21x27x5 Perfect Fit Filter BAYFTFR21M M13 x2
Our Price: $110.00
Retail: $140.00
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Honeywell 20x20x5 Filter FC100A1011 - MERV 8 2pk
(FFC20205HONM8)

Honeywell 20x20x5 FC100A1011 Air Filter is an economical compatible version of the OEM Honeywell FC100A1011 20"x20" Media AC Filter. To save money, this air filter replacement comes in a 2pk value set.


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Honeywell 20x20x5 Filter FC100A1011 - MERV 8 2pk
Our Price: $43.90
Retail: $50.00
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Carrier FILCCCAR0020 Air Purifier Filter
(FILCCCAR0020)

The Carrier FILCCCAR0020 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 fits numerous units including model numbers FIL


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Carrier FILCCCAR0020 Air Purifier Filter
Our Price: $54.99
Retail: $59.99
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Honeywell FC35A1035 Furnace/ AC Air Filter 16x20x5
(FC35A1035 R)

The Honeywell FC35A1035 R is a replacement air cleaner filter that is the correct compatible replacement for the following air filter: Honeywell FC100A1003 The Honeywell FC35A1035 Furnace/ AC Air Filter 16x20x5 fits Honeywell 16 inch x 20 inch


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Honeywell FC35A1035 Furnace/ AC Air Filter 16x20x5
Our Price: $29.99
Retail: $49.99
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Trion Air Bear Supreme 2000 Media Air Cleaner
(455602-025)

The Trion Air Bear Supreme 2000 Media Air Cleaner, part number 455602-019, provides a clean and controlled indoor air environment in your home by removing dirt, dust, pollen and other microscopic particles from your air.


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Trion Air Bear Supreme 2000 Media Air Cleaner
Our Price: $71.21
Retail: $120.74
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GeneralAire 3FM1625 MERV 8 Filter Media Cartridge
(4521)

The General Air 3FM1625 MERV8 Filter Cartridge measures 16"x25"x3", and is the correct filter for General Aire MAC1200 Series Air Cleaners. This General Aire filter will dramatically reduce airborne contaminates to provide much healthier indoor air.


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GeneralAire 3FM1625 MERV 8 Filter Media Cartridge
Our Price: $19.99
Retail: $29.99
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Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1 4-Pack
(BAYFTAH26P4A)

The Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1 is a furnace air filter that fits several electronic and media air cleaner models from Trane. This Trane air filter boasts a MERV 8 rating for the reduction of particulates in your air, including


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Trane BAYFTAH26P4A Pleated 1 inch Filter 26x21x1 4-Pack
Our Price: $51.80
Retail: $59.80
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Trion Air Bear Supreme Filter 20x20x5 MERV11
(259112-103)

The Trion Air Bear Supreme Filter 20x20x5 MERV11 is an Air Bear filter with a MERV 11 rating and built-in frame strength. This genuine Air Bear filter boasts pre-applied gasketing on the pre-assembled filter in order to prevent air bypass. The MERV


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Trion Air Bear Supreme Filter 20x20x5 MERV11
Our Price: $45.99
Retail: $49.99
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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


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Honeywell 14x14 MERV 11 Filter TruDRY DR90 -6 pack
Our Price: $44.95

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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
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Bionaire A2001D Replacement Air Cleaner Filter
(A2001D R)

The Bionaire A2001D Replacement Air Cleaner Filter fits the following model of air cleaner: Bionaire SE2080 This Bionaire air purifier filter is a dual filter, with a pleated filter as well as a carbon filter. The Bionaire A2001D has approxima


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Bionaire A2001D Replacement Air Cleaner Filter
Our Price: $19.99
Retail: $29.99
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Free Flow Room Air Conditioner Filter - 15" x 24"
(93524)

This Free Flow Room Air Conditioner Filter (1777) is a universal 15" x 24" cut to fit black foam room air conditioner filter. It filters dirt, dust, soot, pollen, and other allergens.


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Free Flow Room Air Conditioner Filter - 15" x 24"
Our Price: $3.00
Retail: $5.99
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Honeywell 50000293-003 Post Air Filter - 10x20 2pk
(50000293-003)

The Honeywell 50000293-003 is a post filter that fits the following electronic air cleaner models: Honeywell F50F Honeywell F58F Honeywell F300 The Honeywell 50000293-003 Post Air Filter - 10x20 improves the performance and efficiency of the


In stock! Ships in 1 business day.
Honeywell 50000293-003 Post Air Filter - 10x20 2pk
Our Price: $41.99
Retail: $49.99
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Lennox X8312 MERV 16 Expandable Filter Replacement
(X8312)

The Lennox X8312 MERV 16 furnace filter is an expandable filter for your furnace system. Also known as the HCXF16-16, this pleated air filter will protect both your family and HVAC system. This MERV 16 rated filter will capture very small particles.

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Special Order. Ships in 8 days.
Lennox X8312 MERV 16 Expandable Filter Replacement
Our Price: $108.16
Retail: $124.81
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Lennox X8349 MERV 10 Filter Maintenance Kit
(X8349)

The Lennox X8349 MERV 10 Filter Maintenance Kit is a filter maintenance kit for the Lennox PCO-12C PureAir Air Purification System. This maintenance kit includes one MERV 10 filter (X6664), one catalyst insert (75X73), and four UV bulbs (X8149). The

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Special Order. Ships in 8 days.
Lennox X8349 MERV 10 Filter Maintenance Kit
Our Price: $194.00
Retail: $225.25
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Lennox 72H02 Whole House System Air Filter
(72H02)

The Lennox 72H02 Whole House System Air Filter is a replacement air filter for several Lennox model electronic whole house air purifiers. This pre-filter measures approximately 20x13x3/8 and directly replaces part number 72H0201.


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Lennox 72H02 Whole House System Air Filter
Our Price: $12.48
Retail: $18.27
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Filters Fast - Air Filters

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