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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 72H03 Air Cleaner Filter Cell
(72H03)

This Lennox 72H03 Air Cleaner Filter Cell is a high quality filter cell that provides effective air filtration. The Lennox 72H03 Air Cleaner Filter Cell is a Genuine Lennox replacement filter for central air cleaners.

Free shipping within the continental United States!

Special Order. Ships in 7 days.
Lennox 72H03 Air Cleaner Filter Cell
Our Price: $328.40
Retail: $349.99
You Save 6%!

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Holmes HAPF96 Air Purifier Carbon PreFilter-2 Pack 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.


Special Order. Ships in 24 days.
Holmes HAPF96 Air Purifier Carbon PreFilter-2 Pack
Our Price: $6.99

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Pollenex FP105 Purifier Carbon PreFilter-2 Pack 2-Pack
(RPP105M)

The Pollenex FP105 Purifier Carbon PreFilter-2 Pack fits the following models of ashtray air cleaners: Pollenex AT100 Pollenex AT101 Pollenex AT102 Holmes HAP70 These carbon prefilters are Pollenex replacement carbon ashtray filters. These


Special Order. Ships in 2 days.
Pollenex FP105 Purifier Carbon PreFilter-2 Pack
Our Price: $1.99

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Holmes HAPF91 Purifier Carbon PreFilter 25 2-Packs 2-Pack
(ROHAPF91M)

This Holmes HAPF91 carbon odor filter, a Genuine OEM Holmes Filter, can trap up to 4,000 odors and impurities from your home. The Holmes carbon filter comes 2 per pack.


Special Order. Ships in 2 days.
Holmes HAPF91 Purifier Carbon PreFilter 25 2-Packs
Our Price: $150.00

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Holmes HAPF41 Air Purifier Carbon Prefilter 2pk 2-Pack
(ROHAPF41M)

The Holmes HAPF41 Air Purifier Carbon PreFilter-2 Pack is a replacement pack of carbon pre-filters for the Holmes HAP-300 and Holmes HAP-3004 air purifiers. This two pack of carbon filters protects the HEPA filter of your Holmes air cleaner and prev


Special Order. Ships in 15 days.
Holmes HAPF41 Air Purifier Carbon Prefilter 2pk
Our Price: $15.96

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Vent Cover Magnetic Sheets - 3 pack (cut to fit)
(VC1)

The RPS Vent Cover Magnetic Sheets is designed to control air flow that is energy efficient and saves you money.


Special Order. Ships in 2 days.
Vent Cover Magnetic Sheets - 3 pack (cut to fit)
As Low As: $13.95
Retail: $19.99
You Save 30%!

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RPS Ceiling Fan Air Filter 2-Pack 6-Pack
(CF2)

The RPS Ceiling Fan Air Filter comes in this convenient, cost effective 2-pack value set.


Special Order. Ships in 14 days.
RPS Ceiling Fan Air Filter 2-Pack
Our Price: $6.00

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Carrier 356066-1201 Charcoal Filter EACBAXCC0020 2-Pack
(356066-1201)

The Carrier 356066-1201 Charcoal Filter is a genuine OEM factory replacement charcoal carbon filter for compatible Carrier air cleaners and Bryant air cleaners, especially the Carrier EACBAXCC0020 Electronic Air Cleaner.


Special Order. Ships in 9 days.
Carrier 356066-1201 Charcoal Filter EACBAXCC0020
Our Price: $189.90

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Hunter 30960 QuietFlo HEPA Purifier Filter 3-Pack
(30960)

The Hunter 30960 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


Special Order. Ships in 10 days.
Hunter 30960 QuietFlo HEPA Purifier Filter
Our Price: $204.75

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Hunter 30938 QuietFlo HEPA Purifier Filter 3-Pack
(30938)

The Hunter 30938 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


Special Order. Ships in 10 days.
Hunter 30938 QuietFlo HEPA Purifier Filter
Our Price: $182.58

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Aprilaire Space Gard 2400 Compat 16x27x6 AC Filter 12-Pack 12-Pack
(FC2400A1005)

The Honeywell FC2400A1005 is a compatible AC filter for the Aprilaire and Space Gard 2400 (filter model 401) and is also used in Research Products cabinet models 2200, 2250 and 2400. This filter boasts a MERV 10 rating.


Special Order. Ships in 7 days.
Aprilaire Space Gard 2400 Compat 16x27x6 AC Filter 12-Pack
Our Price: $537.60

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3M Filtrete FAPF00 Air Filter for FAP00 Purifier
(FAPF00)

The 3M Filtrete FAPF00 Air Filter is the replacement air filter for the 3M Filtrete Ultra Quiet Air Purifier (FAP00-RS) for small rooms. This 3M Filtrete Air Filter captures 96% of pollen, mold spores, dust mites, dust, bacteria and particles.


Discontinued Product Read Description.
3M Filtrete FAPF00 Air Filter for FAP00 Purifier
As Low As: $13.50
Retail: $15.99
You Save 16%!

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Odor Killer Return Grille Air Filter - MERV 8, 5"
(FFRAGGM)

The Odor Killer Return Grille Air Filter eliminates smoke odors, cigarette odors, pet odors, gases and other contaminants from your indoor air. Since this return grille air filter is 5" deep compared to the standard 1" air filter, its greater surfac


In Stock! Ships in 1 to 2 business days.
Odor Killer Return Grille Air Filter - MERV 8, 5"
Our Price: $28.99
Retail: $45.99
You Save 37%!

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Hunter 30943 QuietFlo HEPA Purifier Filter
(30943)

The Hunter 30943 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.3 microns.


Discontinued Product Read Description.
Hunter 30943 QuietFlo HEPA Purifier Filter
Our Price: $63.95
Retail: $69.95
You Save 9%!

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Hunter 30944 QuietFlo HEPA Purifier Filter
(30944)

The Hunter 30944 QuietFlo HEPA Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns.


Discontinued Product Read Description.
Hunter 30944 QuietFlo HEPA Purifier Filter
Our Price: $39.99
Retail: $64.99
You Save 38%!

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Holmes HAPF30D Comp Single Replacement HEPA Filter
(HAPF30D)

The Holmes HAPF30D compatible single Replacement HEPA Filter removes up to 99% of airborne dust and pollen, in addition to reducing pet dander, smoke and mold spores.


Discontinued Product Read Description.
Holmes HAPF30D Comp Single Replacement HEPA Filter
Our Price: $15.24
Retail: $29.99
You Save 49%!

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Hunter 30900 HEPAtech Purifier Filter
(30900)

The Hunter 30900 HEPAtech Purifier Filter is an electrostatically-charged filter that captures 99.9% of particles as small as 0.1 microns. It fits the HEPAtech 300-30300 and 302-30302 air filters.


Discontinued Product Read Description.
Hunter 30900 HEPAtech Purifier Filter
As Low As: $22.49
Retail: $36.95
You Save 39%!

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Filters Fast Odor Killer Air Filter, 6-pack
(FFOK 6-pack)

The Filters Fast Odor Killer is a MERV 8 two-stage carbon blended filter designed to "kill" odors such as cigarette smoke, pet odors, irritating gases, cooking odors and other bad odors that might be affecting your indoor air quality.


In Stock! Ships in 1 to 2 business days.
Filters Fast Odor Killer Air Filter, 6-pack
Our Price: $76.67
Retail: $79.99
You Save 4%!

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Filters Fast MERV 13 Return Grille Air Filter - 5"
(FFRAG13)

Protect your health, your environment and your wallet with a Filters Fast MERV 13 Return Grille Air Filter. MERV 13 is one of the highest efficiency ratings available, and Filters Fast now offers this rating in a 5" Return Air Grille application.


Discontinued Product Read Description.
Filters Fast MERV 13 Return Grille Air Filter - 5"
Our Price: $39.99
Retail: $49.99
You Save 20%!

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Filters Fast Odor Killer Return Air Grille Filter
(FFRAGOK)

Filters Fast now offers its 5" Return Air Grille Filters with Odor Killer technology, a MERV 8 two-stage carbon blended filter designed to "kill" odors. FFRAGOK.


Discontinued Product Read Description.
Filters Fast Odor Killer Return Air Grille Filter
Our Price: $45.00
Retail: $59.99
You Save 25%!

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Holmes HAPF38 HEPA Filter Replacement (HAPF38CS)
(HAPF38)

The Holmes HAPF38CS HEPA Filter, which fits Holmes air purifier model HAP292, removes airborne allergens and reduces unwanted smells and odors by capturing fine particulates that float in the air.


Discontinued Product Read Description.
Holmes HAPF38 HEPA Filter Replacement (HAPF38CS)
Our Price: $46.99
Retail: $54.99
You Save 15%!

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Honeywell Replacement HEPA Filter, 28725
(28725)

The Honeywell 28725 Replacement HEPA Filter fits Honeywell models 17450 and 43300. Genuine Honeywell Part.


Discontinued Product Read Description.
Honeywell Replacement HEPA Filter, 28725
Our Price: $67.99
Retail: $110.00
You Save 38%!

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FiltersFast GeneralAire Compatible 20x24x5, 2-pack
(FFC20245GA)

The Filters Fast Compatible 20x24x5 MERV 11 Air Filter can be used as a replacement for GeneralAire part number 12758. Fits Generalaire AC-1 and Byrant 902BXX020.


Discontinued Product Read Description.
FiltersFast GeneralAire Compatible 20x24x5, 2-pack
Our Price: $48.25
Retail: $49.25
You Save 2%!

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Filtrete FAPF04 Air Filter, For Ultra-Slim FAP-04R
(FAPF04)

The Filtrete FAPF04 Air Filter is the replacement air cleaning filter for the Filtrete Ultra Slim Air Purifier FAP04-RC, FAP04. This electrostatically charged filter will attract and retain microparticles that can aggravate allergies and ...


Discontinued Product Read Description.
Filtrete FAPF04 Air Filter, For Ultra-Slim FAP-04R
Our Price: $19.99
Retail: $20.46
You Save 2%!

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Filters Fast MERV 11 Return Grille Air Filter 5"
(FFRAGF)

The Filters Fast MERV 11 Return Grille Air Filter 5" are a great option for upgrading or replacing the traditional 1-inch air filter found in your home or office. View details to learn more...


In Stock! Ships in 12 to 13 business days.
Filters Fast MERV 11 Return Grille Air Filter 5"
Our Price: $29.99
Retail: $39.99
You Save 25%!

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Filters Fast - Air Filters

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