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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


3M Filtrete Dust Reduction Filter - Filtrete 300 6-Pack
(Filtrete 300)

The Filtrete 300 Dust Reduction Filter is a replacement non-electrostatic pleated filter that attracts and captures household dust


In stock! Ships in 1 business day.
3M Filtrete Dust Reduction Filter - Filtrete 300
Our Price: $36.90

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Honeywell 32001 Carbon PreFilter 2-Pack
(Honeywell 32001 1 R)

The Honeywell 32001 Carbon PreFilter 2-Pack is a high quality carbon pre-filter that removes household odors and other impurities. This Honeywell 32001 Carbon PreFilter 2-Pack should be replaced every three months for optimum performance.


In stock! Ships in 1 business day.
Honeywell 32001 Carbon PreFilter 2-Pack
Our Price: $18.99
Retail: $19.99
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TopTech DTT-FM-2020 20x20x4 MERV 11 Filter
(DTT-FM-2020)

The TopTech DTT-FM-2020 20x20x4 MERV 11 Filter removes many allergens, dust, pollen and other airborne pollutants.


In Stock! Ships in 3 to 4 business days.
TopTech DTT-FM-2020 20x20x4 MERV 11 Filter
Our Price: $34.25
Retail: $39.99
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Lennox 98N42 MERV 8 Pleated Furnace Filters 4-Pack 4-Pack
(98N42)

The Lennox 98N42 is a MERV 8 furnace filter 4-pack for your home. This furnace filter will protect your home from unhealthy contaminants and help keep your heating and cooling bill low.


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Lennox 98N42 MERV 8 Pleated Furnace Filters 4-Pack
Our Price: $33.95

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Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5 2-Pack
(BAYFTFR24M2A)

The Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5 fits the TFM245B0FR0 Perfect Fit High Efficiency Air Cleaner and easily slides in for quick use. This Trane Perfect Fit filter measures approximately 24.5" x 27" x 5" and has a MERV 8 rating for


Special Order. Ships in 15 days.
Trane Perfect Fit BAYFTFR24M2A Filter - 24.5x27x5
Our Price: $101.46

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Lennox Y2920 Whole House Air Filter Cabinet
(Y2920)

The Lennox Y2920 Whole House Air Filter Cabinet is the correct system that is: Compatible with any HVAC system and does not require an additional power source


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Lennox Y2920 Whole House Air Filter Cabinet
Our Price: $92.75
Retail: $119.00
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Honeywell Trane BAYFTFR17M Perfect Fit Filter 17.5x27x5 3-Pack
(HTRN1727T1)

These three Honeywell air filters are compatible furnace filters that can be used as upgrades over the Trane Perfect Fit filter of the same size. Genuine Trane Perfect Fit filters have only a MERV 8 rating, while these compatible Honeywell furnace f


In Stock! Ships in 8 to 9 business days.
Honeywell Trane BAYFTFR17M Perfect Fit Filter 17.5x27x5
Our Price: $141.00

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Lennox 92X10 40/60 HEPA Filter Replacement
(92X10)

This Lennox Charcoal Carbon Filter 92X10 is designed to capture 99.97% of particulates down to 0.3 micron that pass through it. The Lennox Healthy Climate filter should be replaced every 2-5 years.

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Special Order. Ships in 7 days.
Lennox 92X10 40/60 HEPA Filter Replacement
Our Price: $260.99
Retail: $284.96
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Lennox 69H85 Whole House Air Purifier Filter 6-Pack
(69H85)

The Lennox 69H85 Whole House Air Purifier Filter is a replacement air filter for the EAC12-14 and EAC-14 Healthy Climate Electronic Air Cleaner from Lennox. This washable pre-filter traps large pollutants, like dust and dirt particles, and helps you


Special Order. Ships in 15 days.
Lennox 69H85 Whole House Air Purifier Filter
Our Price: $65.10

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Holmes HAPF92 Comp Carbon Odor Pre-Filter-2pk
(HAPF92)

The Holmes HAPF92CS Carbon Odor Pre-Filter 2-pack fits the Holmes Air Purifier model HAP292. It extends the life of your air purifier's HEPA filter (Holmes model HAPF38CS) by trapping over 4000 chemicals and eliminates odors.


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Holmes HAPF92 Comp Carbon Odor Pre-Filter-2pk
Our Price: $6.99
Retail: $9.99
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Filters Fast 5" Trane BAYFTFR21M Compatible 2-Pack
(FFC21275TRN OKGM)

The Filters Fast 5" Trane Perfect Fit BAYFTFR21M Compatible FFC21275TRN OKGM fits the following: any air cleaner that calls for a 21" x 27" x 5" filter This Filters Fast air filter also replaces the Trane Perfect Fit BAYFTFR21M filter. This Tr


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Filters Fast 5" Trane BAYFTFR21M Compatible 2-Pack
Our Price: $99.00
Retail: $104.99
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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.


Special Order. Ships in 10 days.
Free Flow Room Air Conditioner Filter - 15" x 24"
Our Price: $9.99
Retail: $15.99
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GeneralAire 100328 Ventilator Filter Replacement
(4663)

The GeneralAire filter pads are for use on your GeneralAire Venitlator. This ventilator filter media will keep your unit running at its best. The 100328 filter media is a genuine OEM part from the manufacturer. These ventilator filter pads will comp


Special Order. Ships in 7 days.
GeneralAire 100328 Ventilator Filter Replacement
Our Price: $40.99
Retail: $49.99
You Save 18%!

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Honeywell 50000293-003 Post Air Filter - 10x20 2pk 2-Pack
(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 12 to 13 business days.
Honeywell 50000293-003 Post Air Filter - 10x20 2pk
Our Price: $85.98

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American Metal Filter Replacement For GE WB02X10776
(OEMRCP0410)

This is a Replacement Microwave Filter (OEMRCP0410) made by American Metal Filter Company which is a compatible microwave filter replacement primarily for the GE WB02X10776 filter. This microwave filter is a combination filter composed of


In Stock! Ships in 10 to 11 business days.
American Metal Filter Replacement For GE WB02X10776
Our Price: $11.99
Retail: $14.99
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Hoover SteamVac Vacuum Filter Recovery Tank F5851
(38762010)

This Hoover SteamVac Vacuum Filter is a Hoover replacement vacuum cleaner filter for the Hoover SteamVac and the Hoover Extractor. It fits Hoover models: F5815, F5817, F5821, F5825, F5827, F5831-900, F5833-900, F5859-900, F5863-900, F5858-920.


In Stock! Ships in 12 to 13 business days.
Hoover SteamVac Vacuum Filter Recovery Tank F5851
Our Price: $8.58
Retail: $9.99
You Save 14%!

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Hoover WindTunnel Vacuum Belt Replacement 2-Pack
(40201160)

The Hoover WindTunnel Vacuum Belt Replacement 2-Pack is a genuine Hoover vacuum belt. These belts for Hoover vacuum cleaners fit upright vacuums including WindTunnel (except Self-Propelled), Bagless Widepath, Bagless PowerMax, Bagless Tempo, and


In Stock! Ships in 6 to 7 business days.
Hoover WindTunnel Vacuum Belt Replacement 2-Pack
Our Price: $7.18
Retail: $9.99
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Trion Air Bear Supreme 1400 Media Air Cleaner
(455602-119C)

The Trion Air Bear Supreme 1400 Media Air Cleaner, part number 455602-119C, provides a clean and controlled indoor air environment in your home by removing dirt, dust, pollen and other microscopic particles and other microscopic particles.


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Trion Air Bear Supreme 1400 Media Air Cleaner
Our Price: $77.15
Retail: $120.75
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Holmes HAPF96 Air Purifier Carbon PreFilter 2-Pack
(ROHAPF96M)

The Holmes HAPF96 is a holmes air filter for your Holmes air purifier. This carbon prefilter helps to remove large particles and odors in your homes air. This air purifier pre filter also protects your air purifiers HEPA filter.


Out of stock
Holmes HAPF96 Air Purifier Carbon PreFilter
Our Price: $7.00

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Awair Glow Plug-In Air Quality Sensor
(AWAIR GLOW)

Take control of the air you breath inside your home with the Bitfinder Awair Glow Plug-In Air Quality Sensor.


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Awair Glow Plug-In Air Quality Sensor
Our Price: $114.00
Retail: $155.00
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Lennox X8346 MERV 16 Filter Upgrade Kit
(X8346)

The Lennox X8346 MERV 16 Filter Upgrade Kit is the correct upgrade for the following whole-house purification system: Lennox PureAir PCO 12C This Lennox upgrade kit contains 4 PureAir UV-A lamps, and 1 PureAir MERV 16 filter. This upgrade kit

Free shipping within the continental United States!

Special Order. Ships in 4 days.
Lennox X8346 MERV 16 Filter Upgrade Kit
Our Price: $189.19
Retail: $215.00
You Save 12%!

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GeneralAire FP2025X5 MERV 8 AC Filter Media
(4526)

The GeneralAire FP2025X5 MERV 8 AC Filter Media is a flatpac expandable replacement filter with a MERV 8 rating. This expandable, high capacity, depth loading fiberglass filter that allows for reduced and efficient storage.


Out of stock
GeneralAire FP2025X5 MERV 8 AC Filter Media
Our Price: $20.99
Retail: $29.99
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Totaline DTLP102-1625 16x25 MERV 11 Filter
(DTLP102-1625)

The Totaline DTLP102-1625 16x25 MERV 11 Filter features a filter material that is constructed of continuous hydrophobic polyolefin fibers that will not shred or absorb moisture.


In Stock! Ships in 1 to 2 business days.
Totaline DTLP102-1625 16x25 MERV 11 Filter
Our Price: $36.44
Retail: $44.99
You Save 19%!

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Hunter 30965 QuietFlo HEPA Purifier Filter
(30965)

The Hunter 30965 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns. This is a true HEPA filter and a genuine OEM Hunter part.


Special Order. Ships in 4 days.
Hunter 30965 QuietFlo HEPA Purifier Filter
Our Price: $35.99
Retail: $52.00
You Save 31%!

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GeneralAire Air Cleaner Prefilter R2-0855
(4782)

The GeneralAire Air Cleaner Prefilter R2-0855 is the correct replacement prefilter for the following model of air cleaner: GeneralAire GA50A22 This GeneralAire air cleaner prefilter measures 20" x 10 1/2". The GeneralAire R2-0855 is also known


Special Order. Ships in 22 days.
GeneralAire Air Cleaner Prefilter R2-0855
Our Price: $30.99
Retail: $39.99
You Save 23%!

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Filters Fast - Air Filters

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